# Basic Computation: zScore and Raw Score A normal distribution has mu = 30 and sigma = 5. (c)Find the raw score corresponding to z =-1.3.

Basic Computation: zScore and Raw Score A normal distribution has $\mu =30$ and $\sigma =5$.
(c)Find the raw score corresponding to $z=-1.3$.
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Arham Warner
$\mu =30$, $\sigma =5$, $z=1.3$.
We use the formula for normal distribution:
$z=\frac{x-\mu }{\sigma }$
$x=\sigma z+\mu$
$x=5\left(1.3\right)+30$
$x=6.5+30$
$x=36.5$
The raw score corresponding to $z=1.3$ for normal distribution with $\mu =30$, $\sigma =5$ is 36.5.
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