AP Stats Review

The equation of the LSRL for the points on a scatterplot is ŷ = 5.3-0.23x. What is the residual for the point (5, 4)?

• -0.15

• 0.15

• 1

• 0.62

• 0.85

Tags

CCSS.HSS.ID.B.6B

The heights of adult women are approximately normally distributed about a mean of 65 inches with a standard deviation of 2 inches. If Bella is at the 87th percentile in height for adult women, then her height, in inches, is closest to

• 63

• 67

• 66

• 72

• 70

Tags

CCSS.HSS.ID.A.4

The graph shows the distribution of scores of 30 students on a mathematics test. Based on the histogram, which statement must be true?

• The lowest test score is 41%.

• The highest test score is 100%.

• The mean test score is between 81% and 90%.

• The median test score is not greater than 80%.

• The lower quartile of the test scores is greater than 60%.

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

A manufacturer makes light bulbs and claims that their reliability is 93 percent. Reliability is defined to be the proportion of non-defective items that are produced over the long term. If the company's claim is correct, what is the expected number of non-defective light bulbs in a random sample of 2,000 bulbs?

• 1350

• 1860

• 93

• 140

• 2000

Tags

CCSS.7.SP.C.6

The boys and girls basketball teams at a high school had their heights measured at practice. The following data was recorded for their heights. What can you conclude from the distributions?

• The girls have a larger median and a larger range in heights.

• The boys had a smaller median height than the girls; however, the boys had a larger range of heights.

• The median height for the boys and the girls is the same; however, the girls have a larger range.

• The median height for the boys is larger; however, the girls have a larger range.

• No information can be concluded from the distribution since there is no key included.

Tags

CCSS.7.SP.B.4

What can be used to show a cause-and-effect relationship between two variables?

• A controlled experiment

• A census

• An observational study

• A cross-sectional study

• A sample survey

Tags

CCSS.HSS.IC.B.3

Two events are said to be disjoint or mutually exclusive when they have no outcomes in common.

• True

• False

Tags

CCSS.HSS.CP.A.1

1. In the scatterplot of y versus x shown above, the least squares regression line is superimposed on the plot. Which of the following points has the largest residual?

• A

• B

• C

• D

• E

Tags

CCSS.HSS.ID.B.6B

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.8.SP.A.3

Lebron James has an 82% chance to make a free throw ftom the line each time. What is the probability he will make 14 shots when he shoots 20?

• 0.036
• 0.149
• 0.134
• 0.082
• None of the above