# AP Statistics : How to do the linear transformation of a random variable

## Example Questions

Explanation:

Explanation:

### Example Question #141 : Ap Statistics

Variable  has a Poisson distribution with a mean of . What is the variance of Variable ?

Explanation:

Because  has a Poisson distribution we know that:

and

.

Therefore, since we are given the mean of 25, we can find its variance to also be 25.