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Statistics 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 .