Question

Data collected for a study involving the IQ scores of a 5 year old girls produced the mean of 100 and a standard deviation of 15

Answer 1

What is the z-score associated with an IQ of 112?

Answer 2

@kropot72

Answer 3

Is it 0.8?

Answer 4

\[\large z=\frac{X-\mu}{\sigma}\ .........(1)\]
Plug the given values into equation (1).

Answer 5

112-100/15

Answer 6

(112 - 100)/15 = ?

Answer 7

0.8

Answer 8

Correct.