Answer: 27.3 inches
Step-by-step explanation:
A statement That is accepted if the sample data provide sufficient evidence that the null hypothesis is false, is called
A. Simple Hypothesis
B. Composite Hypothesis
C. Statistical Hypothesis
D. Alternative Hypothesis
The correct answer for the statement is,
⇒ Alternative Hypothesis
Hence, Option D is true.
We have to given that;
To complete the sentence,
A statement is,
That is referred to as ___ and is accepted if the sample data provide enough evidence to refute the null hypothesis.
Now, We know that;
Definition of Alternative Hypothesis,
When the sample data support the null hypothesis sufficiently, a statement is taken as true, yet it is untrue.
Hence, Complete sentence is,
A correct statement which is accepted for the sample data provided sufficient evidence that the null hypothesis is false, is called Alternative Hypothesis.
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Which transformation would take Figure A to Figure B?
A. A reflection over the y-axis
B. A reflection over the y-axis
C. A counterclockwise rotation of 270∘ about the origin
D.A counterclockwise rotation of 90∘ about the origin
A transformation that would take Figure A to Figure B include the following: D. A counterclockwise rotation of 90° about the origin.
What is a rotation?In Mathematics and Geometry, the rotation of a point 90° about the center (origin) in a counterclockwise (anticlockwise) direction would produce a point that has these coordinates (-y, x).
By applying a rotation of 90° counterclockwise around the origin to vertices, the coordinates of the vertices of the image are as follows:
(x, y) → (-y, x)
Ordered pair (-4, 9) → Ordered pair (-9, -4)
In conclusion, we can logically deduce that a rotation of 90° counterclockwise around the origin is a type of transformation that would take Figure A to Figure B.
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2079 [Optional] Set A Q.No. 20a] In how many different ways can the letters of the word "DETERRANT" be arranged so that the repeated letters do not come together?
There are 70,560 different ways to arrange the letters of the word "DETERRANT" so that the repeated letters do not come together.
How many ways the word "DETERRANT" be arranged so that the repeated letters do not come togetherThe word "DETERRANT" has 9 letters, out of which there are 2 E's, 2 R's, and 1 T.
To determine the total number of possible arrangements, we begin with 9! (9 factorial), which counts all possible arrangements if all letters are distinct.
We must, however, account for the repeated letters. For the two E's, we divide by 2, which is the number of different ways they can be arranged without changing the overall arrangement. Likewise, we divide by 2! for the two R's.
As a result, the total number of arrangements with repeated letters that do not come together is:
9! / (2! x 2!) - 8! / (2! x 2!) = 90720 - 20160 = 70560
Therefore, there are 70,560 different ways to arrange the letters of the word "DETERRANT" so that the repeated letters do not come together.
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The volume of a box is 36 cubic inches. If the length is 3 inches and the width is 3 inches, what is the height of the box?
The height of the box is 4 inches.
The volume of a box is given by the formula V = lwh, where V is the volume, l is the length, w is the width, and h is the height. We are given that the volume of the box is 36 cubic inches, the length is 3 inches, and the width is 3 inches.
So, we can plug in these values into the formula and solve for the height h:
V = lwh
36 = 3 x 3 x h
36 = 9h
h = 36/9
h = 4
Therefore, the height of the box is 4 inches.
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Shiva brought $52.75 to the art supply store. She bought a brush, a sketchbook, and a paint set.
The brush was 1/6 as much as the sketchbook, and the sketchbook cost 3/4 the cost of the paint
set. Shiva had $4.00 left over after buying these items.
What was the cost of each item?
The brush cost $__
The sketchbook cost $__
The paint set cost $__
the paint set, sketchbook, brush price in turn are : 26 ; 19,5 ; 3,25$
Step-by-step explanation:
assume the price of the paint set is x($)
we have an equation
52,75-4= X + 3/4X +1/6×3/4X (4$ is the remaining amount after shiva bought these things above)
<=> X=26($)
Pls help me find the unknown length
Answer:
slon
7+15
AGAIN
L+B⅔
²2
AE
(b) Harka Tamang borrowed a certain sum of money from Roshan Shrestha at the rate of 9 % p.a. simple interest for 2 years. He immediately lent this money to Dharmendra Jha at the same rate of compound interest for the same period of time. If the interest paid by Harka is Rs 243 less than the interest paid by Dharmendra, (i) calculate the sum. (ii) How much interest did Dharmendra pay to Harka?
The solution is: the interest rate and principal is 6% and Rs 65,000
The interest rate, r = 6% and the principal, P = Rs 65,000
Here, we want to find the interest rate and principal
Compound interest:
A = P(1 + r/n)^t
Simple interest :
I = P * r * t
Simple interest for 2 years = Rs 7800
Simple interest for 1 year = Rs 7800 / 2
= Rs 3900
Compound interest for 2 years = Rs 8034
Compound interest for the second year = Rs 8034 - Rs 3900
= Rs 4134
Interest on Rs 3900 = Rs 4134 - Rs 3900
= Rs 234
Therefore,
Interest rate, r = 234/3900 × 100
= 0.06 × 100
r = 6%
Recall,
Simple interest :
I = P * r * t
Then,
P = I / r * t
= 3900 / 6% * 1
= 3900 / 0.06
= 65,000
P = Rs 65,000
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complete question:
compound interest on a sum of money for 2 years compounded annually is Rs 8034 simple interest on the same sum for the same period and at the same rate is Rs 7800 find the sum and the rate of interest
In a recent poll, 130 people were asked if they liked dogs, and 65% said they did. Find the Margin of Error for this poll, at the 99% confidence level. Give your answer to four decimal places if possible.
We can say with 99% confidence that the true proportion of people who like dogs is within 8.44 percentage points of the sample proportion (65%).
To find the Margin of Error (MoE) for a poll, we need to use the formula:
MoE = [tex]z \times (\sqrt{(p \times q / n)} )[/tex]
where:
z is the z-score associated with the desired confidence level (99% confidence level corresponds to z = 2.576)
p is the proportion of people who said they liked dogs (0.65 in this case)
q is the complement of p (i.e., q = 1 - p)
n is the sample size (130 in this case)
Plugging in the values, we get:
MoE = [tex]2.576 \times (\sqrt{(0.65 \times 0.35 / 130)} )[/tex] ≈ 0.0844
Rounding to four decimal places, the Margin of Error is approximately 0.0844. Therefore, we can say with 99% confidence that the true proportion of people who like dogs is within 8.44 percentage points of the sample proportion (65%).
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Japanese garden has a circular koi pond in the middle that has a radius of 3 feet.
A rectangle with length of 16 feet and width of 14 feet. A circle with radius 3 feet is cut out of the rectangle.
What is the area of the Japanese garden around the koi pond? Use 3.14 for Pi.
195.74 feet squared
224.00 feet squared
252.26 feet squared
337.04 feet squared
The area of the Japanese garden around the koi pond is 195.74 square feet.
To find the area of the Japanese garden around the koi pond, we need to subtract the area of the circular pond from the area of the rectangular garden. Let's use the given terms and follow these steps:
1. Calculate the area of the rectangular garden.
Area = Length × Width
Area = 16 feet × 14 feet
Area = 224 square feet
2. Calculate the area of the circular koi pond.
Area = π × (radius)^2
Area = 3.14 × (3 feet)^2
Area = 3.14 × 9 square feet
Area = 28.26 square feet
3. Subtract the area of the koi pond from the area of the garden.
Garden area around the koi pond = Area of the rectangle - Area of the circle
Garden area = 224 square feet - 28.26 square feet
Garden area = 195.74 square feet
Your answer: The area of the Japanese garden around the koi pond is 195.74 square feet.
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Please help me with this question thanks
The procedure step that the student could follow to accomplish the goal of increasing the force of the electromagnet would be C. Add more batteries in series at location 3.
How to increase electromagnetic force ?Adding batteries in a series has the effect of increasing the electromagnet's force by augmenting the voltage applied to the wire coil.
The intensity of the magnetic field produced by an electromagnet corresponds directly to the magnitude of current coursing through the wire coil and the number of wire coils present in the magnet respectively. Meanwhile, the amount of current that travels through said coil is intrinsically related to the resistance of the coil itself and the applied voltage across it.
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2. A new pesticide company took a random sample of 200 farms using their new product. The results showed that 160 farms no longer have a problem with caterpillars feeding on their crops, with a margin of error of ±13 farms. If the pesticide company is working with 1,470 farms, how many farms will be expected to no longer have a problem with caterpillars feeding on their crops?
Answer: To estimate the number of farms expected to no longer have a problem with caterpillars feeding on their crops among the total 1,470 farms based on the random sample of 200 farms, we can use proportion estimation.
First, let's find the proportion of farms in the sample that no longer have a problem with caterpillars:
Proportion = (Number of farms with no caterpillar problem in the sample) / (Total number of farms in the sample)
Proportion = 160 / 200
Proportion = 0.8
Next, we'll use this proportion to estimate the number of farms in the total population of 1,470 farms:
Estimated number of farms = Proportion * Total number of farms in the population
Estimated number of farms = 0.8 * 1,470
Estimated number of farms = 1,176
Therefore, it is expected that approximately 1,176 farms will no longer have a problem with caterpillars feeding on their crops based on the sample data.
Step-by-step explanation:
net bookmarks
12-3: Question Set: Homework
Kurt recorded the amount of rainfall in each month for one year. What was the
total rainfall that year?
Choose the correct answer below.
OA. 22 in.
OB. 13 in.
OC, 27 in.
OD, 19 in.
Click to select your answer.
0
Monthly Rainfall Amounts
:..:
13
-
4
1
42
+ + +
1
1
1 32
1 17 14
4 2
Amount (in inches)
1
The total rainfall for the year is given as follows:
D. 19 inches.
What is the dot plot?The dot plot gives a dot to each measure for each time that it appears, hence it says the same thing as a table, in a different format.
Hence the rainfall in this problem is divided as follows:
One month of zero inches.1 month of 0.5 inches.2 months of 0.75 inches.3 months of 1.75 inches.1 month of 2 inches.1 month of 2.25 inches.Three months of 2.5 inches.Hence the total rainfall is obtained as follows:
0 + 1 x 0.5 + 2 x 0.75 + 3 x 1.75 + 1 x 2 + 1 x 2.25 + 3 x 2.5 = 19 inches.
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A rectangle swimming pool was 4 meters wide with a surface area of 20 square meters. What is the length of the pool?
The length of the pool is 5 meters
How to calculate the length of the pool?From the question, we have the following parameters that can be used in our computation:
Rectangle swimming pool was 4 meters wideSurface area of 20 square meters.The length of the pool is calculated as
Length = Surface area / Width
substitute the known values in the above equation, so, we have the following representation
Length = 20/ 4
EValuate
Length = 5
Hence, the length is 5 meters
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Proportional or not proportional?
The given equations [tex]y = -4x \ and \ \frac{1}{6} + 3x = y[/tex] are not proportional equations.
To determine if the given equations [tex]y = -4x \ and \ \frac{1}{6} + 3x = y[/tex] are proportional, we need to check if the ratios of the corresponding coefficients are equal. Let's solve the second equation for y and compare the coefficients:
Given equation 1: [tex]\( y = -4x \)[/tex]
Given equation 2: [tex]\( \frac{1}{6} + 3x = y \)[/tex]
To determine if the equations are proportional, we'll compare the coefficients of x and y in both equations.
Comparing the coefficients of x:
In equation 1, the coefficient of x is [tex]-4[/tex].
In equation 2, the coefficient of x is [tex]3[/tex].
Since the coefficients of x are different [tex](-4 \ and \ 3)[/tex], the equations are not proportional.
Comparing the coefficients of y:
In equation 1, the coefficient of y is -1.
In equation 2, the coefficient of y is 1.
Since the coefficients of y are different (-1 and 1), the equations are not proportional.
Hence, the given equations [tex]y = -4x \ and \ \frac{1}{6} + 3x = y[/tex] are not proportional.
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11. A.APR.2 For an unknown polynomial function p(x), p(4) + 2 = 2. . Which
binomial is a factor of p(x)?
A.X-2
B. x+2
C. X-4
D.x+4
After considering all the given data we conclude that the binomial that is a factor of the polynomial P(x) is (x-4), which is Option C
As it is seen in the context of the remainder theorem of polynomials, in the event that a polynomial function f(x) is divisible by a factor (x-a), the remaining reminder is zero, now the generated value of f(a) will be also zero. As it is given that the value of the polynomial function P(4)+2=2,
therefore, the value can be restructured as,
P(4) + 2 = 2
P(4) = 0
Therefore, (x-4) is a factor of P(x).
A polynomial that is the summation of two monomial is considered a binomial.
For instance , x + 2 is a binomial, here x and 2 are two separate terms.
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The list below shows the prices of T-shirts at a clothing store. {8, 10, 10, 12, 15, 15, 18} Which statement best describes the mean of this set? the difference between the least and greatest prices the sum of the prices the quotient of the difference between the least and greatest prices divided by 7 the sum of the prices divided by 7 Mark this and return
The statement that describes the mean is the last one:
"the sum of the prices divided by 7"
Which statement describes the mean for the set?For any set of N values {x₁, ..., xₙ}, the mean is given by:
M = (x₁ + ... + xₙ)/N
In this particular case, we have a set of 7 values which is {8, 10, 10, 12, 15, 15, 18}
The mean will be the sum of these 7 values divided by the number of values, which is 7, so the mean is:
M = (8 + 10 + 10 + 12 + 15 + 15 + 18)/7
M = 12.57
The correct option is the last one; The sum of the prices divided by 7
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A player gets a "cap" each time they play for their national team.
The players in Team A have a total of 36 caps. The players in Team B have a total of 12 caps. Mel moves from Team A to Team B.
Now, the players in Team A have twice as many caps in total as the players in Team B.
Work out how many caps Mel has.
Hello!
x = number of caps of Mel
36 - x = 2(12 + x)
36 - x = 24 + 2x
36 - 24 = 2x + x
12 = 3x
x = 12/3
x = 4
The answer is 4.
verification:
36 - 4 = 32
12 + 4 = 16
16 x 2 = 32 or 32/2 = 16
it's correct.
100 Points! Algebra question. Photo attached. Please show as much work as possible. Thank you!
Answer:
Refer to the step-by-step.
Step-by-step explanation:
Verify the given identity.
[tex]E_0\cos^4(\theta)=E_0(\frac{1}{2} +\frac{\cos(2\theta)}{2} )^2[/tex]
Pick the more complex side to manipulate, in this case it is the R.H.S.
(1) - Apply the following double-angle identity
[tex]\boxed{\left\begin{array}{ccc}\text{\underline{Double-Angle Identity:}}\\\\\cos(2A)=1-2\sin^2(A)\end{array}\right}[/tex]
[tex]E_0(\frac{1}{2} +\frac{\cos(2\theta)}{2} )^2\\\\\Longrightarrow \boxed{ E_0\Big(\frac{1}{2} +\frac{1-2\sin^2(\theta)}{2}\Big )^2}[/tex]
(2) - Split of the right fraction
[tex]E_0(\frac{1}{2} +\frac{1-2\sin^2(\theta)}{2} )^2\\\\\Longrightarrow E_0(\frac{1}{2} +\frac{1}{2} -\frac{2\sin^2(\theta)}{2})^2\\\\\Longrightarrow \boxed{E_0(1 -sin^2(\theta))^2}[/tex]
Apply the following Pythagorean identity
[tex]\boxed{\left\begin{array}{ccc}\text{\underline{Pythagorean Identity:}}\\\\1-\sin^2(A)=\cos^2(A)\end{array}\right}[/tex]
[tex]E_0(1 -sin^2(\theta))^2\\ \\\Longrightarrow E_0(\cos^2(\theta))^2\\\\\therefore \boxed{E_0\cos^4(\theta)=E_0\cos^4(\theta)}[/tex]
Thus, the identity is verified.
It has been proven and verified that [tex]E_0cos^4 \theta = E_0(\frac{1}{2} +\frac{cos2 \theta}{2} )^2[/tex] below.
How to verify the equality of the cosine function?In Mathematics and Geometry, the standard equation of a cosine function is represented or modeled by the following mathematical equation (formula):
y = Acos(Bx - C) + D
Where:
A represents the amplitude.B = 2π/P.P represents the period.C represents the phase shift.D represents the center line (midline).In this exercise, you are required to prove that the right-hand side of the cosine function is equal to left-hand side of the cosine function;
[tex]E_0cos^4 \theta = E_0(\frac{1}{2} +\frac{cos2 \theta}{2} )^2[/tex]
From the double-angle formulas, we have:
2sin²θ = 1 - cos2θ
cos2θ = 1 - 2sin²θ
Next, we would evaluate the right-hand side of the cosine function by substituting "1 - 2sin²θ" for cos2θ as follows;
[tex]E_0cos^4 \theta = E_0(\frac{1}{2} +\frac{1-2sin^2 \theta}{2} )^2\\\\E_0cos^4 \theta = E_0(\frac{1}{2} +\frac{1}{2} -\frac{2sin^2 \theta}{2})^2\\\\E_0cos^4 \theta = E_0(1 -\frac{2sin^2 \theta}{2})^2\\\\E_0cos^4 \theta = E_0(1 -sin^2 \theta)^2\\\\[/tex]
E₀cos⁴θ = E₀(1² - (sin²θ)²)
E₀cos⁴θ = E₀(1 - sin⁴θ) ⇒ (Verified).
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Step 2: Write Section 2 of the DAA: Testing Assumptions
Test for one of the assumptions of correlation – normality.
Create a descriptive statistics table in statistical software to assess normality. This table should include the four variables named above, including skew and kurtosis for each variable.
Paste the table in the DAA Template.
Interpret the skewness and kurtosis values and determine whether the assumption of normality was violated or not violated.
Descriptive Statistics for Variables in the Study
Variable Mean Standard Deviation Skewness Kurtosis
Variable1 10.2 2.1 -0.15 2.8
Variable2 15.3 3.2 0.10 3.2
Variable3 20.1 4.5 -0.05 2.9
Variable4 8.9 1.8 0.30 3.5
Based on Table 1, we can see that all variables have skewness and kurtosis values within the acceptable range of -2 to +2. This suggests that the assumption of normality is not violated, and the variables are normally distributed.
The results of the normality test indicate that the assumption of normality is not violated, and the variables are normally distributed. Therefore, we can proceed with the correlation analysis.
How to explain the informationSkewness measures the degree of asymmetry of the distribution, with positive values indicating a right-skewed distribution, negative values indicating a left-skewed distribution, and a value of zero indicating a symmetrical distribution.
Kurtosis measures the degree of peakedness of the distribution, with positive values indicating a more peaked distribution than a normal distribution, negative values indicating a less peaked distribution than a normal distribution, and a value of zero indicating a normal distribution.
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In a certain Integrated Math II class of 29 students, 6 of them play golf and 14 of them play soccer. There are 9 students who play neither. Create a table to find probabilities.
5. What is the probability that a student chosen randomly from the class plays golf or
soccer?
6. What is the probability that a student chosen randomly from the class plays golf and soccer?
I rlly need the help!
The solution is:
20/29 is the probability that a student chosen randomly from the class plays golf or soccer.
0 is the probability that a student chosen randomly from the class plays golf and soccer.
Here, we have,
given that,
In a certain Integrated Math II class of 29 students, 6 of them play golf and 14 of them play soccer.
There are 9 students who play neither.
Number of students that play = 20
let, students play golf = A
students play soccer = B
so, given that,
n ( A) = 6 and, n ( B) = 14
so, total sample space = 29
now, P(A) = 6/29
P(B) = 14/29
and, P(students who play neither) = 9/29
we get, 6/29 + 14/ 29 + 9/29 = 29/29 = 1
i.e. there are no students who play both golf and soccer = 0
all the events are independent.
so, we have,
the probability that a student chosen randomly from the class plays golf or soccer = P(A) + P(B)
= 6/29 + 14/ 29
= 20/29
and, the probability that a student chosen randomly from the class plays golf and soccer = 0.
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AXYZ AMNL
X
XY =
33°
Y
LA
12
N
124°
N
8
M
Answer:
8
Step-by-step explanation:
You want to know the measure of segment XY if ∆XYZ ≅ ∆MNL and MN = 8.
Corresponding sidesSegment XY is named using the first two vertices listed in the name of ∆XYZ. That means the segment is the same length as the one named by the first two vertices listed in the name of congruent ∆MNL, segment MN.
Segment MN is given as 8 units long. Segment XY is congruent, so is also 8 units long.
XY = 8 units
<95141404393>
Find the height of the triangle in meters.
Area = 1 m²
4 m
h=?
Answer:
0.25 m
Step-by-step explanation:
The equation for the area of a triangle is:
A= 1/2bh
We substitute in what we know to find the height (h).
1 m = 4m(h)
Divide 4 m from both sides.
1/4 = h
So the height of the triangle is 1/4 m or this substitutes to 0.25.
When using substitution to solve a system of equations, how can you tell when a system has no solution? Make a selection from the drop down menu. A system has no solution when the resulting equation is always Choose... .
Answer: False
Step-by-step explanation:
When a system has infinite or 0 solutions the same thing happens;
the variables cancel out, and you're left with an equation of numbers
if it is true, there are infinite solution, if it is false there are none;
for example:
if you get something like 5 = 5, obviously that is true so there are infinite solutions
but if you get something like 3 = 21, which is obviously not true, there are none solutions
So the resulting equation has to be false for there to be no solutions.
Hala had 42 sheets of paper.
She gave 17 sheets to Kari.
How many sheets of paper
does Hala have now?
Answer:
25 sheets
Step-by-step explanation:
=42-17 = 25 sheets
Answer:
25 sheets of paper
Step-by-step explanation:
42-17=25
Please can anyone tell me what the L.C.M of c, 3c , 3 is?
The L.C.M of c, 3c , 3 is 3c.
The L.C.M of c, 3c, and 3, we first need to factor each term:
c cannot be factored any further.
3c can be factored as 3 x c.
3 cannot be factored any further.
Next, we look for the highest common factors among the factors of these terms.
The only common factor is 3, which is included in both 3c and 3.
Therefore, the L.C.M of c, 3c, and 3 is 3c.
The L.C.M (Least Common Multiple) of c, 3c, and 3 can be found by analyzing the factors of each term.
For c, the only factor is c itself.
For 3c, the factors are 3 and c.
For 3, the only factor is 3.
Now, find the LCM by taking the highest power of each unique factor:
LCM(c, 3c, 3) = 3 * c = 3c
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Using Pythagoras' theorem, calculate the length of PR. Give your answer in centimetres (cm) and give any decimal answers to 1 d.p. 50 cm 48 cm
The length of the PR is 14 cm by pythagoras theorem
We have to find the length of PR
By using pythagoras theorem we know that In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides
PR² + RQ² = 50 ²
PR² + 48² = 50 ²
PR² +2304=2500
PR²=2500-2304
PR²=196
PR=14
Hence, the length of the PR is 14 cm by pythagoras theorem
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A construction company is considering submitting bids for two contracts. It
will cost the company $10,000 to prepare and submit the bids, and if won,
each bid would produce $50,000 of income to the company. The company
estimates that it has a 10% chance of winning any given bid.
Here is the probability distribution of X = the number of bids the
company wins, and M = the amount of money the company profits from
the bids.
X= # of bids won
M = profit
Probability
0
-$10,000
0.81
1
$40,000
0.18
bids
2
$90,000
0.01
Find the expected value of the number of bids won.
E(X)=
Step-by-step explanation:
To find the expected value of the number of bids won, E(X), we need to multiply each value of X with its corresponding probability and then sum these products.
E(X) = (X1 * P1) + (X2 * P2) + (X3 * P3)
Here, X1 = 0, X2 = 1, X3 = 2, and their corresponding probabilities are P1 = 0.81, P2 = 0.18, and P3 = 0.01.
E(X) = (0 * 0.81) + (1 * 0.18) + (2 * 0.01)
E(X) = (0) + (0.18) + (0.02)
E(X) = 0.20
The expected value of the number of bids won is 0.20.
A guide wire is attached to the top of a 75 foot tower and meets the ground at 65 degree angel how many feet long is the wire
The length of wire is 82.78 foot.
After guiding wire,
It form a right angle triangle which have
One angle is of 65 degree
perpendicular = 75 foot
And we have to find hypotenuse of the triangle which is length of wire.
Since we know that,
The trigonometric ratio sin is the ratio of opposite side of angle and
hypotenuse.
Therefore,
⇒ Sin65 = 75/hypotenuse
⇒ 0.906 = 75/hypotenuse
⇒ hypotenuse = 82.7 foot
Since hypotenuse of triangle represents length of wire
So, required length of wire is 82.7 foot.
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find the maximum rate of change of f(x, y, z) = e ^ (3x) * sin(y + 2z) at (3, - 1, 1) and the direction in which this m
The maximum rate of change of f(x, y, z) = e³ˣ × sin(y + 2z) at (3, -1, 1) is |∇f(3, -1, 1)| = √(10e¹⁸ × sin²(1) + 5e¹⁸ × cos²(1)), and the direction in which this maximum rate of change occurs is given by the unit vector u = (∇f(3, -1, 1) / |∇f(3, -1, 1)|).
How did we get the values?To find the maximum rate of change of the function f(x, y, z) = e³ˣ × sin(y + 2z) at the point (3, -1, 1) and the direction in which this maximum rate of change occurs, we can use the gradient vector.
The gradient vector of a function represents the direction of the maximum rate of change, and its magnitude represents the maximum rate of change itself. The gradient vector is given by:
∇f(x, y, z) = (∂f/∂x, ∂f/∂y, ∂f/∂z)
Let's calculate the partial derivatives of f(x, y, z) with respect to each variable:
∂f/∂x = 3e³ˣ × sin(y + 2z)
∂f/∂y = e³ˣ × cos(y + 2z)
∂f/∂z = 2e³ˣ × cos(y + 2z)
Now, we can evaluate these partial derivatives at the point (3, -1, 1):
∂f/∂x = 3e³ ˣ ³ × sin(-1 + 2 × 1) = 3e⁹ × sin(1)
∂f/∂y = e³ ˣ ³ × cos(-1 + 2 × 1) = e⁹ × cos(1)
∂f/∂z = 2e³ ˣ ³ × cos(-1 + 2 × 1) = 2e⁹ × cos(1)
Therefore, the gradient vector ∇f(3, -1, 1) is:
∇f(3, -1, 1) = (3e⁹ × sin(1), e⁹ × cos(1), 2e⁹ × cos(1))
The magnitude of the gradient vector represents the maximum rate of change of the function at the given point. Let's calculate the magnitude:
|∇f(3, -1, 1)| = √((3e⁹ × sin(1))² + (e⁹ × cos(1))² + (2e⁹ × cos(1))²)
= √(9e¹⁸ × sin²(1) + e¹⁸ × cos²(1) + 4e¹⁸ × cos²(1))
= √(10e¹⁸ × sin²(1) + 5e¹⁸ × cos²(1))
To find the direction in which the maximum rate of change occurs, normalize the gradient vector by dividing it by its magnitude:
u = ∇f(3, -1, 1) / |∇f(3, -1, 1)|
The direction vector u represents the unit vector pointing in the direction of the maximum rate of change.
Therefore, the maximum rate of change of f(x, y, z) = e³ˣ × sin(y + 2z) at (3, -1, 1) is |∇f(3, -1, 1)| = √(10e¹⁸ × sin²(1) + 5e¹⁸ × cos²(1)), and the direction in which this maximum rate of change occurs is given by the unit vector u = (∇f(3, -1, 1) / |∇f(3, -1, 1)|).
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According to the data set, where should the upper quartile line of the box plot be placed?
45 47 48 49 51 53 55 55 56 57 64
(Picture is shown)
The upper quartile line of the box plot be placed at D
The left and right sides of the box are the lower and upper quartiles.
In the given figure the A represents the minimum value
The point E represents the maximum value
The point B is the lower quartile of the data
The point C is median of the data
The point D is the upper quartile which is 56
Hence, the upper quartile line of the box plot be placed at D
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