# zScore and Raw Score A normal distribution has mu = 30 and sigma = 5. (a)Find the z score corresponding to x =25.

zScore and Raw Score A normal distribution has $\mu =30$ and $\sigma =5$.
(a)Find the z score corresponding to $x=25$.
You can still ask an expert for help

• Questions are typically answered in as fast as 30 minutes

Solve your problem for the price of one coffee

• Math expert for every subject
• Pay only if we can solve it

grbavit
$\mu =30$, $\sigma =5$, $x=42$.
We use the formula for normal distribution:
$z=\frac{x-\mu }{\sigma }$
$z=\frac{42-30}{5}$
$z=2.4$
The z score corresponding to $x=42$ for normal distribution with $\mu =30$, $\sigma =5$ is 2.4.