AP Statistics Midterm Review

What percentage of SUV's are driven by women?

• 56.25%
• 75%
• 83.25%
• 86.5%

Tags

CCSS.HSS.IC.B.4

CCSS.HSS.ID.A.4

CCSS.HSS.ID.B.5

The percentile represents the....

• percent of data values that are below.
• percent of data values that are above.
• number of data values that are below.
• number of data values that are below.

The mean temperature in Glens Falls for the month of February is 23 degrees with a standard deviation of 4.2 degrees.  What is the z-score for a temperature of 17 degrees?  

• 1 
• 1.43
• -1.43
• 11.5

Tags

CCSS.HSS.ID.A.4

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last between 12 and 15 days?

• 68%
• 34%
• 16%
• 2.5%

Tags

CCSS.HSS.ID.A.4

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1
• 2
• 3
• 4

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Use the data to calculate the prediction line and use the equation to predict the number of prom tickets sold on day 6.

• y = 4.54 + 27.31x ; prom tickets are estimated to be about 58.93

• y = 27.31 + 4.54x ; prom tickets are estimated to be about 54.55

• y = .97 + 4.54x ; prom tickets are expected to be about 41.24

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.SSE.A.1

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Which of these is the best interpretation of the number 0.1297?

• For each additional square foot of area, the price is predicted to increase by about $0.1297
• A house which has 0 square feet is predicted to cost about $0.1297
• For each additional square foot, the price of the house is predicted to increase about $12.97.
• For each additional square foot of area, the price of the house is predicted to increase 129.70.

Tags

CCSS.HSA.SSE.A.1

CCSS.HSS.ID.C.7

Which of the following is the regression equation for this data?

• Price^ = 87.3180 - 19.4(Area)
• Price^ = -19.4 + 0.1297(Area)
• Area^ = -19.4 + 0.1297(Price)
• Price^ = 0.1297 - 19.4(Area)

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Which of the following is a correct conclusion based on the residual plot displayed?

• the line overestimates the data.

• The line underestimates the data.

• It is not appropriate to fit a line to these data since there is clearly no correlation.

• The data are not related.

• There is a nonlinear relationship between the variables.

Tags

CCSS.HSS.ID.A.3

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

The most important advantage of experiments over observational studies is that

• A) experiments are usually easier to carry out
• B)Experiments can usually give better evidence of causation
• C) Confounding cannot happen in experiments
• D) Observational studies cannot use random samples

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5