# Mean and Standard Deviation

What is mean and standard deviation of monthly storms.

No of storms. Probability

0. 0.2

1. 0.5

2. 0.3

https://brainmass.com/statistics/quantative-analysis-of-data/mean-standard-deviation-269186

#### Solution Preview

Let X denote the number of storms and P(x) be its probability mass function.

Here the probability distribution is ...

#### Solution Summary

The determination of the mean and standard deviation of a probability distribution is discussed in the solution.

$2.19