Stanley Max

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Normal distributions
Two-sample μ and π
Two-sample σ
ANOVA
Linear regression

Normal distributions

Finding the area between two z-values

Finding the z-value or z-values given an area

Example: Find the area between z = -1.55 and z = 1.18

Step 1 (to get to the following screen, press 2nd DIST):

Step 2:

Step 3 (results):

Example: What z-value cuts off the bottom 5% of the normal curve?

Step 1:

Step 2:

Step 3 (results):

 

Example: What z-value cuts off the top 7.5% of the normal curve?

Step 1:

Step 2:

. . . or the following, equivalent step:

Step 3 (results):

[Home]

[Book arts]
[Course material]
[Current interests]
[Earned degrees]
[eps Files]
[Math links]
[My photographs]
[Publications]
[TI-83/84 guides]

[Normal distributions] [Two-sample μ and π] [Two-sample σ] [ANOVA] [Linear regression]

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University of Southern Maine

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