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
[tex]z=\frac{x-\mu}{\sigma}[/tex]
Here we know all the values of x, mu and sigma
Just substitute
Z score
=[tex]\frac{50-49}{2} =\frac{1}{2} \\=0.5[/tex]
Thus Z score of Brenda is 0.5
