AP Statistics Symbol Practice

28% of all Woodrow students believe Monday will be snow day. You take a sample of 50 students and find that 15 of them believe Monday will be a snow day. What does 50 represent? 

• n

• P

• phat

• standard deviation

These symbols represent the mean and standard deviation for which of the following distributions?

• The Population

• The Sample

• The Sampling Distribution

What does this symbol represent?

• parameter

• sample proportion

• parameter of a population

• population proportion

A random sample of 374 United States pennies was collected, and the age of each penny was determined. According to the boxplot shown, what is the approximate IQR of the ages?

• 8

• 10

• 16

• 40

• 50

The boxplots shown summarize two data sets, I and II. Based on the boxplots, which of the following statements about these two data sets CANNOT be justified?

• The range of data set I is equal to the range of data set II

• The interquartile range of data set I is equal to the interquartile range of data set II

• The median of data set I is less than the median of data set II

• Data set I and data set II have the same number of data points

• About 75% of the values in data set II are greater than or equal to about 50% of the values in data set I.

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E