# Finite Math Examples

Step 1

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

has an area under the curve

Step 2

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

has an area under the curve

Step 3

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.

Step 4

Step 4.1

Multiply by .

Step 4.2

Subtract from .