# 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.

Fill in the known values.

Simplify the expression.

Simplify the numerator.

Multiply by to get .

Subtract from to get .

Divide by to get .

Since , there are no solutions.

No solution