AP Statistics Review #4

2. In the year’s county mathematics competition, a student scored 38; in last year’scompetition, the student scored 33. The average score this year was 36 with a standarddeviation of 2. Last year’s average score was 32 with a standard deviation of 1. In whichyear did the student score better?(A)The student scored better on this year’s exam.(B) The student scored better on last year’s exam.(C)The student scored equally well on both exams.(D)Without knowing the number of test items, it is impossible to determine the betterscore.(E) Without knowing the number of students taking the exam in the county, it isimpossible to determine the better score.