Homework Help: statistics

Posted by RGCLARK on Friday, February 24, 2012 at 6:22pm.

A student scored 84 points on a test where the mean score was 79 and the standard deviation was 4. Find the student's z score, rounded to 2 decimal places

statistics - MathGuru, Friday, February 24, 2012 at 6:34pm
Use z-score formula.

z = (x - mean)/sd

x = 84
mean = 79
sd = 4

Plug the values into the formula and calculate for your z-score.
statistics - kim, Thursday, June 21, 2012 at 9:32pm
1.25

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