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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

3 answers

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.

1.25

64.25

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