On this semesters final exam, john scored 72 on his calculus exam and 53 on his statistics exam. The z score for both exams was the same. Which on would he do better on?

a. calculus
b.statistics
c. the exam scores are equivalent

If the Z scores are the same, he did the same on both.

To determine which exam John did better on, we need to compare the z-scores of the two exams. The z-score measures how many standard deviations an individual's score is above or below the mean score. A higher z-score indicates a better performance relative to the mean.

To calculate the z-score, we need to know the mean and standard deviation for both exams. Let's assume that we don't have this information at the moment. However, we know that the z-scores for both exams are the same.

Since the z-score is the same for both exams, it means that John's score in relation to the mean of the calculus exam is the same as his score in relation to the mean of the statistics exam.

If his score in relation to the mean of the calculus exam is higher than his score in relation to the mean of the statistics exam, it indicates that he did better in calculus. On the other hand, if his score in relation to the mean of the statistics exam is higher, it means he did better in statistics.

Therefore, without specific information on the mean and standard deviation for the exams, we cannot determine with certainty which exam John did better on. The correct answer in this case would be c. The exam scores are equivalent.