SOLUTION: how do you get the mean of a quiz score when the student scored 469 and the z score is -3 and the standard deviation is 7? I am feeling lost or maybe tired
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Question 752525: how do you get the mean of a quiz score when the student scored 469 and the z score is -3 and the standard deviation is 7? I am feeling lost or maybe tired
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Q:
how do you get the mean of a quiz score when the student scored 469 and the z score is -3 and the standard deviation is 7? I am feeling lost or maybe tired
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A:
z score =
-3 = , multiply both sides by 7
-21=
= 469 + 21 = 490
The mean of a quiz score is .
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