NarutoGuy NarutoGuy

11-04-2018
Mathematics

contestada

Given a mean of 24.5 and a standard deviation of 1.7 what is the z score of the value 24 rounded to the nearest tenth?

A.-0.9
B.-0.3
C.0.3
D.0.9

Respuesta :

MsEHolt MsEHolt

21-04-2018

The correct answer is B) -0.3

Z-scores are found using the formula

z = (X-μ)/σ

For this problem, we have

z = (24-24.5)/1.7 = -0.5/1.7 = -0.3

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