# Statistics Examples

, ,
The z-score for a value of a random variable is the number of standard deviations that falls from the mean .
The z-score converts a non-standard distribution to a standard distribution in order to find the probability of an event.
Find the z-score.
Fill in the known values.
Simplify the expression.
Simplify the numerator.
Multiply by .
Subtract from .
Divide by .