Question

In a study of 82 Halo game players, it was found that the ages of these players were normally distributed, with a mean age of 17 years and a standard deviation of 3 years. Find the z score for a 21 year old.

Answer 1

Step-by-step explanation:

z=(21-17)/3

z=4/3

z=1.3333

Answer 2

$\\ \sf\longmapsto z=\dfrac{Age-Mean}{Standard\: deviation}$

$\\ \sf\longmapsto z=\dfrac{21-17}{3}$

$\\ \sf\longmapsto z=\dfrac{4}{3}$

$\\ \sf\longmapsto z=1.3$