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A student scored 70 points on a test where the mean score was 85 and the standard deviation was 7. Find their z score

A student scored 70 points on a test where the mean score was 85 and the standard deviation was 7. Find their z score
asked 62.8k views
1 vote
A student scored 70 points on a test where the mean score was 85 and the standard deviation was 7. Find their z score

asked
User Mario Perez
by
9.4k points

1 Answer

6 votes
formula:
z= 70-85/7
z= 70-85= -15/7= -2.142857143
rounded answer= -2.14
answered
User Simin
by
7.9k points
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