Question

Jordan is 53 inches tall. What is his z-score? Jake is 44 inches tall. What is his z-score? Jacob is 49 inches tall. What is his z-score. Photo below of question! Please help

Answer 1

The following are each student's z-scores

Jordan = 2

jake = -2.5

Jacob = 0

What is the height of a student whose z-score is 3?

55"

Explanation:

Answer 2

The following are each student's z-scores

Jordan = 2

Jake = -2.5

Jacob = 0

Explanation:

To find each of these, use the formula given in the picture. The x value will be the student's height. The mu (or funny looking m) will be the mean. And the sigma (the o with a line) is the standard deviation.

Jordan

z = (x - m)/o

z = (53 - 49)/2

z = 4/2

z = 2

Jake

z = (x - m)/o

z = (44 - 49)/2

z = -5/2

z = -2.5

Jacob

z = (x - m)/o

z = (49 - 49)/2

z = 0/2

z = 0