Part (a)
Answer: No, it's not a statistical questionWhy not? Because we can locate the tallest building without having to gather a sample and computing any statistical values based on the sample data. Note how we have one single building and we're focused on just that building only. We aren't asking anything about a population of buildings. Statistics is the science of trying to measure a population in some way, often through the use of a sample statistic. For example, if we asked "what is the average building height in Chicago, Illinois?", then we would be asking a statistical question. Ideally, we would measure every single building in the city. Of course, that's very time consuming and impractical. So the next best thing is to randomly select a sample of buildings and try to estimate the average height like that.
Once again, we're only focused on one single building and not several. So we don't do the operations of gathering a sample and we aren't doing any statistics here. We're simply measuring the building, or looking up the building height in some records database.
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Part (b)
Answer: Yes, it is a statistical questionThe population is the set of teenagers. This could be narrowed to just the teens in one specific town, county, or regional area. It doesn't make much sense to extend the population out too far because teens too far away would likely not visit this particular mall in question. Let's say the population is every teen in a certain county. We have a lot of people in this population, so we'll have to gather a sample. Doing a census is too time consuming and expensive. This process of gathering a sample points to this question being a statistical one. We don't know which store is the most popular, but we can get a fairly good idea through the sampling process. It won't be a 100% guarantee that we got the right one considering that again the sample isn't the exact population, but we should get close if we did the sampling right.
Note how the variable in question is a qualitative one. The store names are the categories or names that the teens select in the survey. This data type is nominal and not ordinal, since stores do not have an inherent rank (other than alphabetical but that's not of much importance). Also note that the responses for this random variable are, more or less, random in nature. We simply don't know how the teens will respond assuming we go into this completely blind. It's a good idea to do so to avoid bias. This random nature helps add evidence we have a statistical question here. The random variable value is not set in stone like the tallest building is. Keep in mind that the question for part (a) is asked to refer to a very specific narrow window of time. The same can be said for part (b) as well. Be sure to carefully set up the question and avoid any ambiguity.
To summarize, to answer such a question given to us we would need to gather a sample and compute sample statistics. This is why we have a statistical question here.
Solve 1= X^2+3x-16/X^2-6x+8
Answer:
x=1.816298 or x=−1.162524
Step-by-step explanation:
Step 1: Multiply both sides by x^2.
x2=x4−3x3+8x2−16
x2−(x4−3x3+8x2−16)=x4−3x3+8x2−16−(x4−3x3+8x2−16)(Subtract x^4-3x^3+8x^2-16 from both sides)
−x4+3x3−7x2+16=0
(Use quartic formula)
x=−1.162524,1.816298
Check answers. (Plug them in to make sure they work.)
x=1.816298(Works in original equation)
x=−1.162524(Works in original equation)
Two customers took out car loans from a bank.
Marcus took out a 5-year loan for $10,000 and paid 4.7% annual simple interest.
Gianna took out a 6-year loan for $10,000 and paid 4.5% annual simple interest.
What is the difference between the amounts of interest Marcus and Gianna paid for their car loans?
Enter your answer in the box.
The difference between the amounts of interest Marcus and Gianna paid for their car loan should be $350.
Calculation of the difference;
For Marcus, the interest be like
= ($10,000) (4.7%) (5)
= $2,700
And, for gianna, the interest be like
= ($10,000) (4.5%) (6)
= $2,350
So, the difference is
= $2,700 - $2,350
= $350
hence, The difference between the amounts of interest Marcus and Gianna paid for their car loan should be $350.
Learn more about interest here: https://brainly.com/question/21508109
Answer:
$350
Step-by-step explanation:
Simple interest formula
[tex]\Large\boxed{\sf I=Prt}[/tex]
where:
I = total interest accruedP = principalr = interest rate (in decimal form)t = time (in years)Marcus
Given:
P = $10,000r = 4.7% = 0.047t = 5 years⇒ Interest = 10000 × 0.047 × 5
⇒ Interest = $2,350
Gianna
Given:
P = $10,000r = 4.5% = 0.045t = 6 years⇒ Interest = 10000 × 0.045 × 6
⇒ Interest = $2,700
Difference
Difference = Gianna's interest - Marcus' interest
= $2,700 - $2,350
= $350
What is the volume of this rectangular prism?
PLZ HELp FAST jshsbak
Answer:
(2,2)
Step-by-step explanation:
The solution to a system of equations is the point where they intersect. In this equation they intersect on the point (2,2).
Write a general formula to describe the variation:
x varies inversely with the square root of y; x = 6 when y = 64.
Answer:
the last one
Step-by-step explanation:
Here's a graph of a linear function. Write the equation that describes that function. 8 Express it in slope intercept form. Enter the correct answer.
Answer:
f(x) = [tex]\frac{1}{2}x+4[/tex]
Step-by-step explanation:
Let the equation of the function is,
f(x) = mx + b
Here, m = slope of the line
b = y-intercept
From the graph attached,
y-intercept 'b' = 4
Slope = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]
= [tex]\frac{4}{8}[/tex]
= [tex]\frac{1}{2}[/tex]
Therefore, equation of the function representing the graph will be,
f(x) = [tex]\frac{1}{2}x+4[/tex]
Find the Area of the Shaded Region.
Round to the nearest tenth if necessary.
14 cm
25 cm
11 cm
What is the slope of the line
A.1/2
B.1
C.-2
D.2
Can anyone help me out on this
Answer:
i'd saay 3/7
Step-by-step explanation:
also plz help on this
5th grade only what is the quotation of these
3/8 + n = 7/8.
Pls help
The two dot plots represent a sample of the number of people in households in two towns. Which statements are true about the data sets?
Check all that apply.
Both have the same number of data points.
Both means are between 3 and 4.
Both have the same median.
Both have the same range.
Westwood has less variability than Middleton.
Answer:
both have the same amount of dots I know that.
Step-by-step explanation:
also, I love the profile picture:)
Answer: 1, 2, and 5
Step-by-step explanation:
I did it myself
WILL GIVE BRAINLIEST, PLS HELP
A coin is tossed and a number cube is rolled at the same time. What is the probability that the coin will land on tales and the number cube will land on four?
A:) 1/12
B.) 1/6
C.) 1/4
D.) 5/12
Answer:
A: [tex]\frac{1}{12}[/tex]
Step-by-step explanation:
Chance of tales: [tex]\frac{1}{2}[/tex]
Chance of four: [tex]\frac{1}{6}[/tex]
Multiply: ([tex]\frac{1}{2}[/tex])([tex]\frac{1}{6}[/tex]) = [tex]\frac{1}{12}[/tex]
A coin is flipped 20 times. The results are 12 heads and 8 tails. Determine the theoretical probability of getting heads.
60%
40%
20%
50%
Answer: I should be 60%
Step-by-step explanation:
20 * 5 = 100 so we multiply the number of times you got heads by 5. 12 * 5 = 60.
Answer:
it will be 60%
because i got it right
What percent of the data lies between 109 minutes and 138 minutes?
A. 25%
B. 50%
C. 75%
D. 100%
Answer:
B. 50% is the answer.
Step-by-step explanation:
that's the answer.
Answer:
the 2nd part is b. and c.
if ethan has 109 points and he spends 52 out of his 109 points how many will he have
Answer:
57 points
Step-by-step explanation:
Answer:
47
Step-by-step explanation:
The students claims that the model accurately describes the motion of the galaxies in the universe what evidence from the model supports the student claim I need help bad
Answer: As the dough rises, the distance between the raisins increases, indicating that the galaxies are moving apart.
Step-by-step explanation:
Taz packs 15 sweaters in boxes. Each box can hold 4 sweaters.
How many boxes of sweaters does Taz pack?
Write a mixed number for the number of boxes of sweaters Taz packs.
Sweaters 15 each box can hold only 4 sweaters how many boxes does taz pack
Answer:3 and 3/4 :)
Step-by-step explanation: 15/4= 3 R 3 3 and 3/4
I need help some plz answer give out point!
Answer:
Kiwis because there are 12 and cost less then nectarienes
Step-by-step explanation:
hope this helps pls give me brainliest
Will give brianliest
Answer:
A B and C
Step-by-step explanation:
A has a coordinate of 3.75 because 2.5 × 1.5 = 3.75 and 3.75 is greater then -3
B has a coordinate of 7 because -3.5 × -2 = 7 and 7 is greater then -3
C has a coordinate of 0 because 0 x 0 = 0 and 0 is greater then -3
D has a coordinate of -6 because -1.5 x 4 = -6 and -6 is less then -3
Hopes this helps
WILL MARK BRAINLIEST IF YOU HELP use the line plot to answer the questions the line plot shows the length of wood strips in inches THE ANSWER HAS TO BE IN FRACTION FORM
Answer: 5 is 2 and 1/2 6 is 2 and 3/4 7 is 3 and 4/5 8 is 10 and 1/2
Step-by-step explanation:
Ask me anytime easy
John is saving for his son's college education. If the savings account earns 3% interest compounded monthly, and he wants to have $60,000 in 10 years, what must the principal be? Round your answer to the nearest dollar.
Answer:
44466
Step-by-step explanation:
Use the compound interest formula and substitute the values
Math question attached below
Answer:
4 x 2
Step-by-step explanation:
number of rows is 4
number of columns is 2
Ms. Clark bought a TV for $50 off, and Stephon bought one for 10% off. They were comparing prices and realized that they
both paid the same amount. What was the original price of the TV?
Answer:
500
Step-by-step explanation:
if they are the same price we can infer that 10% was 50 dollars and if we time 50 by ten we get 500
In the diagram below of circle 0, GO = 8 and
mZGOJ= 60°.
G
8
60°
What is the area, in terms of A, of the shaded
region?
Answer:
[tex] \frac{80\pi} [/tex]
Step-by-step explanation:
Area of shaded region = θ/360 × πr²
Where,
θ = 360 - 60 = 300°
r = 8
Plug in the values
[tex] area = \frac{300}{360} * \pi * 8² [/tex]
[tex] = \frac{5}{6} * \pi * 64 [/tex]
[tex] = \frac{5*\pi*64}{6} [/tex]
[tex] = \frac{5*\pi*16} [/tex]
[tex] = \frac{80\pi} [/tex]
An 8 kg box is at rest and is pushed for 10 m with a 60 N force. If it's accelerated to 10 m/s, calculate the efficiency of the force.
Answer:
2/3
Step-by-step explanation:
The work done on the box is ...
Fd = (60 N)(10 m) = 600 N·m = 600 J
The amount of energy the box has as a result is ...
KE = 1/2mv² = (1/2)(8 kg)(10 m/s)² = 400 kg·m²/s² = 400 J
The ratio of box energy to energy input is ...
η = (400 J)/(600 J) = 2/3 . . . ≈ 66.7%
Which statements are true about a rectangular pyramid with a height of 9 centimeters and a base with the
dimensions of 4 centimeters by 6 centimeters? Select two options.
The area of the base of the pyramid, B, is 8 cm.
The area of the base of the pyramid, B, is 24 cm?
A rectangular prism with the dimensions of 9 cm by 4 cm by 6 cm will have 3 times the volume of this pyramid.
1
A rectangular prism with the dimensions of 9 cm by 4 cm by 6 cm will have 3 of the volume of this pyramid.
The volume of this pyramid is 216 cm
Answer:
- The area of the base of the pyramid, B, is 24 cm
- A rectangular prism with the dimensions of 9 cm by 4 cm by 6 cm will have 3 times volume of this pyramid.
Step-by-step explanation: Volume of a rectangular based pyramid = 1/3{Base area × Height}
Base Area = Length × Breadth
Volume = 1/3{(Length × Breadth) × Height}
Given a rectangular pyramid with a height of 9 centimeters and a base with the dimensions of 4
centimeters by 6 centimeters
Base Area = 4cm × 6cm
Base area = 24cm²
If Height =9cm
Volume of the pyramid = 1/3 × 24 × 9
Volume = 24 × 3
Volume of the pyramid = 72cm³
If the shape is a prism, the volume will be base area × height
= 24 × 9
= 216cm³
It can be seen that volume of rectangular prism = 3 × volume of rectangular pyramid.
What is the equation of the inverse y = x^2 + 4?
find the vertex form f(x)=x2 + 4x)-1
Answer:
(2,-5)
Step-by-step explanation:
1448×17 in vertical order