Question

YQ test scores are normally distributed with a mean of 100 and a standard deviation of 15.An individual's IQ score is found to be 110.Find the z-score corresponding to this value.

Answer 1

0.6667

EXPLANATION :

The z score formula is :

z = (x - mean)/(standard deviation)

Using the formula :

z = (110 - 100)/15

z = 0.6667