Question

Use the information given in the table on the right to complete each of the following statements.

Brenda is 50 inches tall. Her z-score is
.

Answer 1

0.5

Explanation:

Answer 2

0.5

Explanation:

Given that height of 7 year old children are normally distributed with mean =49 inches and std deviation = 2inches

Brenda is 50 inches tall

This means her X score is 50

To convert this X score to Z score we use the formula given below

`z=(x-\mu)/(\sigma)`

Here we know all the values of x, mu and sigma

Just substitute

Z score

=
`(50-49)/(2) =(1)/(2) \\=0.5`

Thus Z score of Brenda is 0.5