wilsonvvu2 wilsonvvu2

14-04-2022
Mathematics

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Mr. Gray’s quiz was normally distributed with a mean of 25 and a standard deviation of 10 find z- scores for each of the following.

(a) 40 (b) 27 (c) 6

Respuesta :

sweetchrono sweetchrono

14-04-2022

Hello!

Z= x-u/sd

(a) x = 40
z = 40-25 / 10 = -15/10 = -1.5

(b) x = 27
z = 27-25 / 10 = 2/10 = 0.2

(c) x = 6
z = 6-25 / 10 = -19/10 = -1.9

Hope that helped

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