Question 1

1. You have taken an important exam.You know that the scores on the exam are normally distributed, the mean score was 85 and the standard deviation was 5.You also know that your raw score on the exam was 84.What was your z score for this exam?

-.2

0

+.2

+.8

1 points

Question 2

1. You have taken an important exam.You know that the scores on the exam are normally distributed, the mean score was 85 and the standard deviation was 5.You also know that your raw score on the exam was 84.What percentage of the students scored more highly than your raw score of 84?

41.18%

44.63%

48.88%

57.9%

1 points

Question 3

1. Your best friend alsotook thisimportant exam.You know that the scores on the exam are normally distributed, the mean score was 85 and the standard deviation was 5.You also know that your friend had a raw score on the exam was 91.What was your friends's z score for this exam?

-2.1

-1.2

0

+1.2

1 points

Question 4

1. You haveanother friend who took thisimportant exam.You know that the scores on the exam are normally distributed, the mean score was 85 and the standard deviation was 5.You also know that your other friend'sZ score on the exam was 0.What was yourother friend's rawscore for this exam?

80

83

85

88

1 points

Question 5

1. You and a friend have both taken an important exam.You know that the scores on the exam are normally distributed, the mean score was 85 and the standard deviation was 5.You also know that your raw score on the exam was 84 and your friend's raw score was 91.What percentage of students who took the exam scored between you and your friend?

46.4%

49.6%

57.4%

58.91%