# Finding Probabilities Under Normal Distribution

Suppose x is a normally distributed random variable with y=13 and o=2. Find the following probabilities:

1. P (x is greater than or equal to 13.5)

2. P (13.44 is less or equal to x and 18.18 is greater than or equal to x).

https://brainmass.com/math/probability/finding-probabilities-normal-distribution-539203

#### Solution Preview

Hi, for a normally distributed random variable x, we need to transfer it into a standard normal variable z. The formula is ...

#### Solution Summary

The solution gives detailed steps on calculating specific probabilities for normally distributed random variable with known mean and standard deviation.

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