AP Stat ~ Minor Grade ~ Units 1 - 3 REVIEW

The mean weight of an adult female beagle is 28 pounds with a standard deviation of 3 pounds.  The mean weight of an adult female boxer is 70 pounds with a standard deviation of 6 pounds.  A beagle named Suzie weighs 34 pounds.  How much would a female boxer have to weigh in order for her to have the same z-score as Suzie?

• 70 pounds
• 76 pounds
• 80 pounds
• 82 pounds

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CCSS.HSS.ID.A.4

Here is the dot plot of voter turnout (as a percentage of voting-age population) for the 50 states—plus the District of Columbia—in a recent presidential election. Which of the following best describes this distribution?

• The distribution of voter turnout is skewed slightly left, centered at about 62%, with a range of 24%.
• The distribution of voter turnout is roughly symmetric, centered at about 60%, with a range of 30%.
• The distribution of voter turnout is skewed slightly right, centered at about 62%, with a range of 24%.
• The distribution of voter turnout is bimodal, centered at about 60%, with a range of 30%.

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CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Which of the distributions displayed in the dot plots below has the highest standard deviation?

• Distribution A
• Distribution B
• Distribution C

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CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

According to the 1.5 x IQR rule, how many outliers are there in the data set 72, 110, 114, 115, 118, 123, 144, 156?

• None
• One
• Two
• Three

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CCSS.HSS.ID.A.3

An adult male aged 20-29 who is 73 inches tall would be shorter than what percent of males in his age group?

• 10%

• 15%

• 85%

• 90%

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CCSS.HSS.ID.A.4

In a survey of men in the United States (ages 20-29), the mean height was 69.6 inches with a standard deviation of 3.0 inches. Find the minimum height in the top 22%.

• 69.37 in

• 67.58 in

• 73.12 in

• 71.92 in

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CCSS.HSS.ID.A.4

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5.  What proportion of weeks would you expect to have more than 7 accidents?

• 0.3446
• 0.2856
• 0.4
• 0.6554

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CCSS.HSS.ID.A.4

What is the equation of the LSRL

• y-hat = 3.367 - 0.062x

• y-hat = 3.3 - 0.6x

• y-hat = -0.062 + 3.3x

• y-hat = 3.3 + 3.3x

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CCSS.HSS.ID.C.8

The correlation coefficient for the relationship between number of hours per week spent working at an off campus job and overall gpa for 125 college students was -0.64. What percent of the variation in gpa can be explained by the linear relationship between  number of hours and gpa?

• 80%
• -80%
• 41%
• -41%

The equation of the least squares regression line for a set of points in a scatterplot is given above. The point (5, 7) is one point on this scatterplot. Which of the following is the residual for the point (5, 7)?

• 6.25

• 4.05

• 0.71

• 0.75

• 7.87