Question
$X$ is a normally distributed random variable with mean 500 and standard deviation $25 .$ Find the probability indicated.a. $\quad P(X<400)$b. $\quad P(466<X<625)$
Step 1
This is done by subtracting the mean and dividing by the standard deviation. The formula for this conversion is $Z = \frac{X - \mu}{\sigma}$, where $\mu$ is the mean and $\sigma$ is the standard deviation. Show more…
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