CDeaton15 CDeaton15

02-10-2017
Mathematics

contestada

"Suppose X ~ N(2, 3).

What value of x has a z-score of −0.74? (Enter an exact number as an integer, fraction, or decimal.)"

Thanks so much for any and all help. I have no idea what I'm doing. :P

Respuesta :

Аноним Аноним

02-10-2017

z score = (x - m) / s where m = mean and d = std deviation

-0.74 = (x - 2)/ 3

x - 2 = -2.92

x = -0.92

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