AP Statistics Unit 1 MC Questions

An AP Statistics teacher collected data from all 30 students in class with the following survey. Which of the following is not a variable in this data set?

• Favorite season
• Number of people living in household
• Number of students in this AP Statistics class
• Whether or not you can roll your tongue
• Birth month

Jorge's score on Exam I in his statistics class was at the 64th percentile of the scores for all students. His score falls

• between the minimum and the first quartile.
• between the first quartile and the median.
• between the median and the third quartile.
• between the third quartile and the maximum.
• at the mean score for all students.

Tags

CCSS.6.SP.B.5C

When Sam goes to a restaurant, he always tips the server $2 plus 10% of the cost of the meal. If Sam's distribution of meal costs has a mean of $9 and a standard deviation of $3, what are the mean and standard deviation of his tip distribution?

• $2.90, $0.30
• $11.00, $2.00
• $2.90, $2.30
• $2.00, $0.90
• $9.00, $3.00

Scores on the ACT college entrance exam follow a bell-shaped distribution with mean 21 and standard deviation 5. Wayne's standardized score on the ACT was -0.6. What was Wayne's actual ACT score?

• 3
• 13
• 16
• 18
• 24

George's average bowling score is 180; he bowls in a league where the average for all bowlers is 150 and the standard deviation is 20. Bill's average bowling score is 190; he bowls in a league where the average is 160 and the standard deviation is 15. Who ranks higher in his own league, George or Bill?

• Bill, because his 190 is higher than George's 180.
• Bill, because his standardized score is higher than George's.
• Bill and George have the same rank in their leagues, because both are 30 pins above the mean.
• George, because his standardized score is higher than Bill's.
• George, because the standardized deviation of bowling scores is higher in his league.

Tags

CCSS.HSS.ID.A.4

The number of absences during the fall semester was recorded for each student in a large elementary school. The distribution of absences is displayed in the following cumulative relative frequency graph. What is the interquartile range (IQR) for the distribution of absences?

• 1
• 2
• 3
• 5
• 14

The number of absences during the fall semester was recorded for each student in a large elementary school. The distribution of absences is displayed in the following cumulative relative frequency graph. If the distribution of absences was displayed in a histogram, what would be the best description of the histogram's shape?

• Symmetric
• Uniform
• Skewed left
• Skewed right
• Cannot be determined

The following bar graph shows the distribution of favorite subject for a sample of 1000 students. What is the most serious problem with the graph?

• The subjects are not listed in the correct order.
• This distribution should be displayed with a pie chart.
• The vertical axis should show the percent of students.
• The vertical axis should start at 0 rather than 100.
• The foreign language bar should be broken up by language.

Here are the amounts of money (cents) in coins carried by 10 students in a statistics class: 50, 35, 0, 46, 86, 0, 5, 47, 23, 65. To make a stemplot of these data, you would use stems

• 0,2,3,4,6,8
• 0,1,2,3,4,5,6,7,8
• 0,3,5,6,7
• 00, 10, 20, 30, 40, 50, 60, 70, 80, 90
• None of these

If a distribution is skewed to the right with no outliers, which expression is correct?

• mean < median
• mean is approximately median
• mean = median
• mean > median
• We can't tell without examining the data.

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2