# Finite Math Examples

Find the value in a look up table of the probability of a z-score of less than .

has an area under the curve

Find the value in a look up table of the probability of a z-score of less than .

has an area under the curve

To find the area between the two z-scores, subtract the smaller z-score value from the larger one. For any negative z-score, change the sign of the result to negative.

Multiply by to get .

Subtract from to get .