Question

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

Answer 1

Answer:

0.5

Step-by-step explanation:

Answer 2

Answer:

0.5

Step-by-step 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

$z=\frac{x-\mu}{\sigma}$

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

Just substitute

Z score

=$\frac{50-49}{2} =\frac{1}{2} \\=0.5$

Thus Z score of Brenda is 0.5