- #1

songoku

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## Homework Statement

Variable A has mean 55 and variance 9, variable B has mean 65 and variance 25. If A and B are normally distributed, find P (B > A)

## Homework Equations

z = (x - μ) / σ

## The Attempt at a Solution

Can this be solved? What is the meaning of P (B > A)? The probability of random variable B is bigger than random variable A?

Thanks