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The grades on a chemistry midterm at Loyola are roughly symmetric with u= 67 and 0 = 5.5.
Tiffany scored 53 on the exam.
Find the Z-score for Tiffany's exam grade. Round to two decimal places.

Respuesta :

LammettHash

Take the difference between Tiffany's score and the average:

53 - 67 = -14

Divide this difference by the standard deviation to get the z-score:

(53 - 67)/5.5 = -14/5.5 ≈ -2.55

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