# Statistics Examples

Find the Probability Using the Z-Score
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
Find the area between the two z-scores.
Multiply by .
Subtract from .