• 1. Shown below are the summary statistics for test scores from two different AP Statistics classesone taught first period and one taught third period.

Mean Std. n Median Q1 Q3 Min. Max. Dev.

First- period test scores	75.7	11.93	20	78.5	72	82.5	48	94
Third- period test scores	81.8	9.6	29	85	74	89	57	96

NOTE:A student saw a paper that showed the two lowest grades for the first-period class, which were 48 and 68.

A. Construct box plots for the two classes on the same horizontal axis with one box plot above the other box plot. Be sure to check for outliers.(10 points)

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B. Which class had the better overall performance? Justify your answer.(12 points)

C. The first-period class has a standard deviation of 11.93. Explain how this value summarizes variability in this class.(4 points)

2. The stemplot below shows the weights of 30 male high school students from Small Rock High School.

A. Using your knowledge of statistics, describe the distribution. Include statistics and discussion of shape, center, and spread.(20 points)

B. Would it be reasonable to use this information to generalize about the distribution of weights for the entire population of high school boys? Why or why not?(6 points)