Asked by Jacob

A teacher graded the tests for each of her students. She calculated a mean grade of 80 and a standard deviation of 3. One of her students, Katrina, had a z-score of 2. What grade did Katrina get on the test?
Answered by Steve
Z=2 means 2 std above the mean.
So, what's 80+2*3?
Answered by Jacob
86
Answered by Ms. Sue
Try reading Steve's problem again, Jacob.

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