Question

Given the average IQ is 100 and the standard deviation of IQ scores is 15, what is the standardized score for May, who's IQ is 95? Round to one decimal place.

Answer 1

\(\large Zscore = \frac{observation - mean}{standard~deviation}\)

Answer 2

figure out the given values and plugin

Answer 3

Would 100 be the mean?

Answer 4

yes!

Answer 5

Z score is -0.3?

Answer 6

-0.3 is \(\large \color{Red}{\checkmark}\)

Answer 7

good job !

Answer 8

Thanks!

Answer 9

u wlc :)