Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

تمرين 76

z Scores: First Aid Course The college physical education department offered an advanced first aid course last semester. The scores on the comprehensive final exam were normally distributed, and the z scores for some of the students are shown below:

(a) Which of these students scored above the mean
(b) Which of these students scored on the mean
(c) Which of these students scored below the mean
(d) If the mean score was = 150 with standard deviation = 20, what was the final exam score for each student