Answer:
The probability that both are red is 2/9Step-by-step explanation:
Given the sample space
20 red marbles and
10 blue marbles
the sample size is
S= 20+10= 30
The probability that both are red if two marbles are pulled at once is
[tex]\frac{20}{30} *\frac{10}{30} \\\\=\frac{2}{3}*\frac{1}{3} = \frac{2}{9}[/tex]
In d e f, d f equals 16 and F equal 26. Find Fe to the nearest tenth
Answer:
14.4 units
Step-by-step explanation:
In Trigonometry
[tex]\cos \theta =\frac{Adjacent}{Hypotenuse}\\[/tex]
In Triangle DEF,
[tex]\cos F =\dfrac{EF}{DF}\\\cos 26^\circ =\dfrac{EF}{16}\\EF=16 \times \cos 26^\circ\\=14.4$ units (correct to the nearest tenth).[/tex]
eight less than fout times a number is less than 56. what are the possible values of that number
Answer:
x<16
Step-by-step explanation:
number n
eight less than four times a number ... 4 x n - 8
is less than 56 ... < 56
4 x n - 8 < 56
4 x n < 56 + 8
4 x n < 64/4
n < 64 / 4
n < 16
Answer:
Step-by-step explanation:
Let the number be x
Four times the number : 4x
Eight less than four times a number: 4x - 8
4x - 8 < 56
Now add 8 to both sides,
4x < 56+8
4x < 64
Divide both sides by 4,
x < 64/4
x < 16
Possible values of number = Value less than 16
Please answer this correctly
Answer:
6,4,4,4,5,7
Step-by-step explanation:
Answer: 31-40 6 bracelets, 41-50 4 bracelets, 51-60 4 bracelets, 61-70 4 bracelets, 71-80 5 bracelets, 81-90 7 bracelets
Step-by-step explanation:
6 given numbers within 31-40
4 given numbers within 41-50
4 given numbers within 51-60
4 given numbers within 61-70
5 given numbers within 71-80
7 given numbers within 81-90
Divide: (y2−4y+6)÷(y+1).
Answer:
Step-by-step explanation:
hello
[tex]y^2-4y+6= (y+1)^2-2y-1-4y+6=(y+1)^2-6y+5=(y+1)^2-6(y+1)+11[/tex]
so
[tex]\dfrac{y^2-4y+6}{y+1}=y+1-6+\dfrac{11}{y+1}=y-5+\dfrac{11}{y+1}[/tex]
hope this helps
A grasshopper sits on the first square of a 1×N board. He can jump over one or two squares and land on the next square. The grasshopper can jump forward or back but he must stay on the board. Find the least number n such that for any N ≥ n the grasshopper can land on each square exactly once.
Answer:
n=N-1
Step-by-step explanation:
You can start by imagining this scenario on a small scale, say 5 squares.
Assuming it starts on the first square, the grasshopper can cover the full 5 squares in 2 ways; either it can jump one square at a time, or it can jump all the way to the end and then backtrack. If it jumps one square at a time, it will take 4 hops to cover all 5 squares. If it jumps two squares at a time and then backtracks, it will take 2 jumps to cover the full 5 squares and then 2 to cover the 2 it missed, which is also 4. It will always be one less than the total amount of squares, since it begins on the first square and must touch the rest exactly once. Therefore, the smallest amount n is N-1. Hope this helps!
The smallest value of n is N-1.
What is a square?Square is a quadrilateral of equal length of sides and each angle of 90°.
Here given that there are 1×N squares i.e. N numbers of squares in one row.
The grasshopper can jump either one square or two squares to land on the next square.
Let's assume the scenario of 5 squares present in a row.
Let the grasshopper starts from the first square,
so the grasshopper can cover the full 5 squares in 2 methods;
one method is that it will jump one square at a time and reach at last square.
another method is it will jump all the squares to the finish and then backtrace.
If the grasshopper jumps one square at a time, it will take 4 jumps to cover all 5 squares.
Similarly, If a grasshopper jumps two squares at a time and then backtrace, it will take 2 jumps to reach the 5th square and then it will jump 1 square and then 2 squares to cover the 2 squares it missed, for which the number jump is also 4.
From the above it is clear that the number of jumps will always be one less than the total number of squares if the grasshopper begins from the first square and touch every square exactly once.
Therefore, the smallest value of n is N-1.
Learn more about squares
here: https://brainly.com/question/1538726
#SPJ2
Multi step equation a-2+3=-2
Answer:
-3
Step-by-step explanation:
a-2+3=-2
-3 -3
a-2=-5
+2 +2
a=-3
// have a great day //
Answer:
a = -3
Step-by-step explanation:
a - 2 + 3 = -2
Add like terms.
a + 1 = -2
Subtract 1 on both sides.
a = -2 - 1
a = -3
The value of a in the equation is -3.
When planning a more strenuous hike, Nadine figures that she will need at least 0.6 liters of water for each hour on the trail. She also plans to always have at least 1.25 liters of water as a general reserve. If x represents the duration of the hike (in hours) and y represents the amount of water needed (in liters) for a hike, the following inequality describes this relation: y greater or equal than 0.6 x plus 1.25 Which of the following would be a solution to this situation?
Answer:
The solution for this is:
y = (0.6 * x) + 1.25
Hope it helps! :)
Answer:
Having 3.2 liters of water for 3 hours of hiking
Step-by-step explanation:
If x represents the number of hours and y represents the number of liters of water, then we can plug the possible solutions into our inequality to see which solution(s) work.
The first option is having 3 liters of water for 3.5 hours of hiking. We will plug 3 in for y and 3.5 in for x:
y > 0.6x + 1.25
3 > 0.6(3.5) + 1.25
3 > 3.35
But since 3 is not greater than 3.35, this does not work.
The next option is having 2 liters of water for 2.5 hours of hiking:
2 > 0.6(2.5) + 1.25
2 > 2.75
But 2 is not greater than 2.75, so this does not work.
Option c is having 2.3 liters of water for 2 hours of hiking:
2.3 > 0.6(2) + 1.25
2.3 > 2.45
Since 2.3 is not greater than 2.45, this solution does not work.
The last option is having 3.2 liters of water for 3 hours of hiking:
3.2 > 0.6(3) + 1.25
3.2 > 3.05
3.2 IS greater than 3.05, so this solution works!
In the fall semester of 2009, the average Graduate Management Admission Test (GMAT) of the students at a certain university was 500 with a standard deviation of 90. In the fall of 2010, the average GMAT was 570 with a standard deviation of 85.5. Which year's GMAT scores show a more dispersed distribution
Answer:
Due to the higher coefficient of variation, 2009's GMAT scores show a more dispersed distribution
Step-by-step explanation:
To verify how dispersed a distribution is, we find it's coefficient of variation.
Coefficient of variation:
Mean of [tex]\mu[/tex], standard deviation of [tex]\sigma[/tex]. The coefficient is:
[tex]CV = \frac{\sigma}{\mu}[/tex]
Which year's GMAT scores show a more dispersed distribution
Whichever year has the highest coefficient.
2009:
Mean of 500, standard deviation of 90. So
[tex]CV = \frac{90}{500} = 0.18[/tex]
2010:
Mean of 570, standard deviation of 85.5. So
[tex]CV = \frac{85.5}{570} = 0.15[/tex]
Due to the higher coefficient of variation, 2009's GMAT scores show a more dispersed distribution
2009's GMAT scores show a more dispersed distribution.
Given that in 2009: Mean = 500 and standard deviation = 90.
In 2010: Mean = 570 and standard deviation = 85.5.
If the standard deviation is higher then the scores will be more dispersed.
Note that: 90 > 85.5. And 90 corresponds to 2009.
So, 2009's GMAT scores show a more dispersed distribution.
Learn more: https://brainly.com/question/11231804
what is the distance of the ramp in feet? in the picture and please help answer the question below !!!
Answer:
Option 2) Sin 35 = [tex]\frac{5}{x}[/tex]
Step-by-step explanation:
Sin 35 = [tex]\frac{opposite }{hypotenuse}[/tex]
Where opposite = 5' and hypotenuse = x(unknown)
=> Sin 35 = [tex]\frac{5}{x}[/tex]
THE DIFFERENCE OF TWO NUMBERS IS 4 AND THEIR SUM IS -7. WHAT IS THEIR PRODUCT. Who ever solved this correct will mark brainlist. 100%
Answer:
33/4
Step-by-step explanation:
Let the first number be x, and the second number be y.
x - y = 4
x + y = -7
Solve for x in the first equation.
x - y = 4
x = 4 + y
Put x as (4 + y) in the second equation and solve for y.
4 + y + y = -7
4 + 2y = -7
2y = -7 - 4
2y = -11
y = -11/2
Put y as -11/2 in the first equation and solve for x.
x - y = 4
x - (-11/2) = 4
x + 11/2 = 4
x = 4 - 11/2
x = -3/2
Their product is:
-11/2 × -3/2
33/4
Answer: 33/4
Step-by-step explanation:
We can use system of equations to find the missing numbers. Once we have the missing numbers, we can find the product. Let's use x and y for the missing numbers.
Equation 1
x-y=4
This equation comes from the difference of the 2 numbers being 4.
Equation 2
x+y=-7
This equation comes from the sum of the 2 numbers is -7.
We can use elimination to solve for y. We would subtract the 2 equations together so that x can cancel out.
-2y=11
y=-11/2
Now that we know y, we can substitute it into the equations above to find x.
x-(-11/2)=4
x+11/2=4
x=-3/2
With the x and y values, we can find the product.
(-3/2)*(-11/2)=33/4
anyone please answer this
Answer:
21
Step-by-step explanation:
1/5 of 30 is 6
10% of 30 is 3
3+6=9
30-9=21
which is 7/10
Answer:
Simon has 7/10 of the cakes left.
The probability that a machine works on a given day is based on whether it was working in the previous day. If the machine was working yesterday, then the probability it will work today is 0.76. Of the machine was broken yesterday, then the probability it will be broken today is 0.33. Of the machine is broken today, what is the likelihood that it will be working two days from now
Answer:
73.03% probability that it will be working two days from now
Step-by-step explanation:
The machine is broken today.
If the machine is broken on a day, the following day, it has a 1-0.33 = 0.67 probability of working on the next day.
Otherwise, if it is works correctly on a day, it has a 0.76 probability of working on the next day.
Uf the machine is broken today, what is the likelihood that it will be working two days from now
Either of these outcomes are acceptable:
Tomorrow - 2 days from now
Not working - working
Working - Working
Not working - working
Today, it does not work. So tomorrow the probability of not working correctly is 0.33. Then, if tomorrow does not work, 0.67 probability of working correctly two days from now
0.33*0.67 = 0.2211
Working - Working
Today, it does not work. So tomorrow the probability of working correctly is 0.67. Then, if tomorrow works, 0.76 probability of working correctly two days from now
0.67*0.76 = 0.5092
Total
0.2211 + 0.5092 = 0.7303
73.03% probability that it will be working two days from now
A service station has both self-service and full-service islands. On each island, there is a single regular unleaded pump with two hoses. Let X denote the number of hoses being used on the self-service island at a particular time, and let Y denote the number of hoses on the full-service island in use at that time. The joint pmf of X and Y appears in the accompanying tabulation.
Y
p(x,y), 0 1 2
0 .10 .04 .02
x 1 .08 .20 .06
2 .06 .14 .30
a. What is P(X = 1 and = 1)?
b. Compute P(X land Y 1).
c. Give a word description of the event {X t- 0 and Y 0}, and compute the probability of this event
d. Compute the marginal pmf of X and of Y. Using pX(x), what is P(X 5 1)?
e. Are X and Y independent rv's? Explain.
Answer:
Step-by-step explanation:
Y
p(x,y) 0 1 2
0 0.10 0.04 0.02
x 1 0.08 0.2 0.06
2 0.0 0.14 0.30
a) What is P(X = 1 and = 1)
From the table above we have
P(1,1) = 0.2
b) Compute P(X ≤ 1 and Y ≤ 1).
[tex]=p(0,0)+p(0,1)+p(1,0)+p(1,1)\\\\=0.1+0.04+0.08+0.2\\\\=0.42[/tex]
C)
Let A ={X ≠ 0 and Y ≠ 0}
p{X ≠ 0 , Y ≠ 0}
= p(1,1) + p(1,2) + p(2,1) + p(2,2)
= 0.20 + 0.06 + 0.14 + 0.30
=0.7
d) The possible X values are in the figure 0,1,2
[tex]p_x(0)=p(0,0)+p(0,1)+p(0,2)\\\\=0.1+0.04+0.02\\\\=0.16\\\\p_x(1)=p(1,0)+p(1,1)+p(1,2)\\\\=0.08+0.2+0.06\\\\=0.34\\\\p_x(2)=p(2,0)+p(2,1)+p(2,2)\\\\=0.06+0.14+0.3\\\\=0.5[/tex]
The possible Y values are in the figure 0,1,2
[tex]p_y(0)=p(0,0)+p(1,0)+p(2,0)\\\\=0.1+0.08+0.06\\\\=0.24\\\\p_y(1)=p(0,1)+p(1,1)+p(2,1)\\\\=0.04+0.2+0.14\\\\=0.38\\\\p_y(2)=p(0,2)+p(1,2)+p(2,2)\\\\=0.02+0.06+0.3\\\\=0.38[/tex]
So the probability of x ≤ 1 is
[tex]p(x\leq 1)=p_x(0)+p_x(1)\\\\=0.34+0.16\\\\=0.50[/tex]
e) From the table
[tex]p_x(x=1,y=1)=p(1,1)\\\\=0.2\\\\p_x(1)=0.34\\\\p_y(1)=0.38[/tex]
we multiply both together
0.34 x 0.38
=0.1292
Therefore p(1,1) is not equal px(1), py(1)
Hence x and y are not independent it is not equal
There is a bag filled with 5 blue and 4 red marbles. A marble is taken at random from the bag, the colour is noted and then it is replaced. Another marble is taken at random. What is the probability of getting exactly 1 blue?
Answer:
40/81.
Step-by-step explanation:
Prob(Picking a blue on one pick) = 5/(5+4) = 5/9.
Prob(Picking a red on one pick) = 4/(5+4) = 4/9.
Required probability is either the first pick is blue OR the second pick is blue. (The other probability on one pick is of course a red marble.)
Probability of at least 1 blue = P(red)*P(blue) + P(blue)*P(red)
= 4/9 * 5/9 + 5/9*4/9
= 20/81 + 20/81
= 40/81.
Another way of solving this is by using a tree diagram.
Based on the above, the probability of getting exactly 1 blue marble is 40/81.
What is the probability of getting exactly 1 blue?Scenario 1: Blue on the first draw, red on the second draw:
The probability of drawing a blue marble on the first draw is 5/9, as there are 5 blue marbles out of a total of 9 marbles in the bag. After replacing the marble, the probability of drawing a red marble on the second draw is also 4/9, as there are still 4 red marbles and 9 marbles in total.Scenario 2: Red on the first draw, blue on the second draw:
The probability of drawing a red marble on the first draw is 4/9. After replacing the marble, the probability of drawing a blue marble on the second draw is 5/9.
To find the total probability, one has to add the probabilities of the two scenarios:
Probability of exactly 1 blue marble = (Probability of Scenario 1) + (Probability of Scenario 2)
= (5/9) * (4/9) + (4/9) * (5/9)
= 20/81 + 20/81
= 40/81
Therefore, the probability of getting exactly 1 blue marble is 40/81.
Learn more about probability from
https://brainly.com/question/13604758
#SPJ2
Please help me or assist me in answering this Thank you 5 2/3 X 6 7/8
Answer: 38 23/24
Step-by-step explanation:
Turn the mixed numbers into improper fractions
5 * 3 = 15
15 + 2 = 17
17/3
————————
6 * 8 = 48
48 + 7 = 55
55/8
————————
Now multiply the improper fractions
17/3 * 55/8
17 * 55 = 935
3 * 8 = 24
Divide 935 by 24 to get the answer as a mixed number.
935 / 24 = 38.95833
0.95833/1 = 23/24
935/24 as a mixed number is 38 23/24
Answer: 119 / 4
Step-by-step explanation:
5 2/3 x 6 7/8
= 17/3 x 6 x 7/8
= 17 x 2 x 7/8
= 17 x 2 x 7/8
= 17 x 7/4
= 119 / 4
The caller times at a customer service center has an exponential distribution with an average of 22 seconds. Find the probability that a randomly selected call time will be less than 30 seconds? (Round to 4 decimal places.)
Answer:
The probability that a randomly selected call time will be less than 30 seconds is 0.7443.
Step-by-step explanation:
We are given that the caller times at a customer service center has an exponential distribution with an average of 22 seconds.
Let X = caller times at a customer service center
The probability distribution (pdf) of the exponential distribution is given by;
[tex]f(x) = \lambda e^{-\lambda x} ; x > 0[/tex]
Here, [tex]\lambda[/tex] = exponential parameter
Now, the mean of the exponential distribution is given by;
Mean = [tex]\frac{1}{\lambda}[/tex]
So, [tex]22=\frac{1}{\lambda}[/tex] ⇒ [tex]\lambda=\frac{1}{22}[/tex]
SO, X ~ Exp([tex]\lambda=\frac{1}{22}[/tex])
To find the given probability we will use cumulative distribution function (cdf) of the exponential distribution, i.e;
[tex]P(X\leq x) = 1 - e^{-\lambda x}[/tex] ; x > 0
Now, the probability that a randomly selected call time will be less than 30 seconds is given by = P(X < 30 seconds)
P(X < 30) = [tex]1 - e^{-\frac{1}{22} \times 30}[/tex]
= 1 - 0.2557
= 0.7443
The top figure in the composite figure is called a . And What is the volume?
Answer:
Triangular Prism
volume 748
Please answer this correctly
Answer:
63 points
Step-by-step explanation:
63 points is the lowest score having 6 as "leaf" and 3 as "stem"
Answer:
63 points
Step-by-step explanation:
The lowest score is 63 with a stem of 6 and leaf of 3.
The null hypothesis for this ANOVA F test is: the population mean load failures for the three etch times are all different the population mean load failure is lowest for the 15‑second condition and highest for 60‑second condition at least one population mean load failure differs the sample mean load failure is lowest for the 15‑second condition and highest for 60‑second condition the sample mean load failures for the three etch times are all different the population mean load failures for the three etch times are all equal
Answer:
The population mean load failures for the three etch times are all equal
Step-by-step explanation:
For an ANOVA F test, the null hypothesis always assumes that mean which is also the average value of the dependent variable which is continuously are the same/ there is no difference in the means. The alternative is to test against the null and it is always the opposite of the null hypothesis.
Mary is running a marathon which is a total of 26 miles. She is running at a pace of 7.5 miles per hour and
has already run 8 miles. If she stays at the same pace, how much time in hours does she have left?
Answer:
2.4 hours
Step-by-step explanation:
If Mary is running 26 miles at a pace of 7.5 miles per hour, it will take her 3.47 hours to run the full course.
26/7.5 = 3.466666...
If she has run 8 miles, 1.07 hours have passed.
8/7.5 = 1.06666666...
Subtract the total time from the time that has already passed to find the time left.
3.47 - 1.07 = 2.4
Mary has 2.4 hours left.
A diagnostic test has a 95% probability of giving a positive result when given to a person who has a certain disease. It has a 10% probability of giving a (false) positive result when given to a person who doesn’t have the disease. It is estimated that 15% of the population suffers from this disease.
(a) What is the probability that a test result is positive?
(b) A person recieves a positive test result. What is the probability that this person actually has the disease? (probability of a true positive)
(c) A person recieves a positive test result. What is the probability that this person doesn’t actually have the disease? (probability of a false negative)
Answer:
a)0.2275 b)95/105=19/21 c)10/105= 2/21
Step-by-step explanation:
a) The case "The test result is positive" consists in 2 parts.
The 1st one is "The person has the desease (15%=0.15) and the test's result is positive (95%=0.95)
The probability of that is P(desease, positive) = 0.15*0.95=0.1425
The 2nd one is "The person has no the desease (100%-15%=85%=0.85). However the test result is positive (10%=0.1)
The probability of that is P(not desease, positive)=0.85*0.1=0.085
The total probability that test is positive is the sum of 1st and 2-nd parts of the case: P(pos) = 0.1425+0.085=0.2275
b) As it has been shown in a) The test result can be positive in case that the person is really has the desease (95%) and in case the person has no the desease (10%). This actually means that 95 persons from 105 having positive test result are really has the desease.
So the probability that the test result is positive and person has the desease is P (desease/positive)= 95/105
c) It's clearly seen that the sum of probabilities of b) and c) equal 1.
Both events make full group of events.
If the test result is positive the person can have the desease or can have not the desease. So ( no desease/positive)= 1-95/105=10/105
The table below shows the number of students who attend various after-school activities.Which does the ratio 17:44 represent?
Answer:
The part-to-part relationship between homework help and sports
Step-by-step explanation:
Assume the table is like the one below.
[tex]\begin{array}{lcl}\textbf{Activity}& \textbf{Students} \\\text{Spanish} & 19 \\\text{Basketball} & 24 \\\text{Drama} & 15\\\text{Homework help} & 17 \\\text{Soccer} & 20 \\\end{array}[/tex]
17 students participated in homework help.
44 students participated in basketball (24) and soccer (20), i.e. sports
Both sports and homework help are parts of the whole group of all activities.
Thus, 17:44 represents the part-to-part relationship between homework help and sports.
Explanation: Please show table.
Simplify 18 - 2[x + (x - 5)]. 28 - 4 x 8 - 4 x 28 - 2 x
Answer:
[tex]-4x+28[/tex]
Step-by-step explanation:
[tex]18-2(x+x-5)[/tex]
[tex]18+(-2)(x)+(-2)(x)+(-2)(-5)[/tex]
[tex]18+-2x+-2x+10[/tex]
[tex]-2x-2x+10+18[/tex]
[tex]=-4x+28[/tex]
Leah has 28 more marbles than Dan. 1/3 of Leah’s marbles are equal in number to 4/5 of Dan’s marbles. Find the number of marbles Leah has.
Answer:
48
Step-by-step explanation:
L = D + 28
⅓L = ⅘D
Solve the system of equations using elimination or substitution. Using substitution:
⅓L = ⅘(L − 28)
Multiply both sides by 15:
5L = 12(L − 28)
Distribute:
5L = 12L − 336
Combine like terms:
336 = 7L
Divide:
L = 48
To collect data on the signal strengths in a neighborhood, Briana must drive from house to house
and take readings. She has a graduate student, Henry, to assist her. Briana figures it would take her
12 hours to complete the task working alone, and that it would take Henry 18 hours if he completed
the task by himself.
Answer: Working together, they can complete the task in 7 hours and 12 minutes.
Step-by-step explanation:
Ok, Briana needs 12 hours to complete the task.
Then we can find the ratio of work over time as:
1 task/12hours = 1/12 task per hour.
This means that she can complete 1/12 of the task per hour.
Henry needs 18 hours to complete the task, then his ratio is:
1 task/18 hours = 1/18 task per hour.
This means that he can complete 1/18 of the task in one hour.
If they work together, then the ratios can be added:
R = 1/12 + 1/18 = 18/(12*18) + 12/(18*12) = 30/216
we can reduce it to:
R = 15/108 = 5/36
So, working together, in one hour they can complete 5/36 of the task, now we can find the number of hours needed to complete the task as:
(5/36)*x = 1 task
x = 36/5 hours = 7.2 hours
knowing that an hour is 60 minutes, then 0.2 of an hour is 60*0.2 = 12 minutes.
then x = 7 hours and 12 minutes.
Please answer this correctly
Answer:
6 pizzas
Step-by-step explanation:
At least 10 and fewer than 20 makes it 10-19
So,
10-19 => 6 pizzas
6 pizzas have at least 10 pieces of pepperoni but fewer than 20 pieces of pepperoni.
Check all of the points that are solutions to the system of inequalities.
y> 4x + 2
y< 4x + 5
Someone help me ASAP
Answer:
It is only (5,24).
Step-by-step explanation:
You are correct.
Sometimes, check all options means there could be just one option.
pqrs is a rhombus. If PO= 4 cm and OQ=3cm,then find PQ.(please answer fast)
Answer: 5 cm
Step-by-step explanation:
The diagonals of a rhombus bisect each other in half
PO = OR = 4 cm
So. PR = 8 cm
Similarly,
SO = OQ = 3 cm
So, SQ = 6 cm
To measure side, formula is
a = √p^2 + q^2 / 2
a = √6^2 + 8^2 / 2
a = √36+64 / 2
a = √100 / 2
a = 10/2 = 5 cm
The box plots show Devonte’s scores in Spanish and in French. Devonte inferred that his French scores have less variability than his Spanish scores. Which explains whether Devonte’s inference is correct?
Devonte is correct because the range is greater for French.
Devonte is correct because the interquartile range is less for French. Devonte is not correct because his highest grade is in Spanish.
Devonte is not correct because the interquartile range is less for Spanish.
Answer:
Devonte is correct because the interquartile range is less for French
Step-by-step explanation:
The first box plot at the top shows scores in Spanish, while the second box plot below it shows French scores.
Variability can be ascertain by finding out the interquartile range of a data set.
The higher the value of the IQR, the more the variability, while the lower the IQR, the less the variability.
IQR = Q3 - Q1
IQR for Spanish score = 85 - 60 = 25
IQR for French score = 80 - 65 = 20
From the above, we can say that Spanish scores has more variability when compared to French scores.
Therefore, Devonte is correct because the interquartile range is less for French, which shows that the variability in French scores is lesser than that of Devonte's Spanish scores.
Answer:
Devonte is correct because the interquartile range is less for French.
Step-by-step explanation:
The scoring range indicates the deviance from the standard values. It can only be inferred that the interquartile range is very narrow. In other words, there is less variability in the scores. Thus, a smaller quartile range means that there is less variability in the quantity being measured. The interqurtile range is the difference in the values of the the 75th percentile and the 25th percentile of a cumulative frequency distribution curve.
Which expression is equivalent to pq
Answer:
D
Step-by-step explanation:
Mark Brainliest