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# MATH 153 Chapter 7

### Normal Probability Distribution

The area under the normal curve to the right of 𝛍 equals ___________. 1/2
How do you calculate the area to the right of a Z-score? 1 - area
How do you calculate the area between two Z-scores? Z2 - Z1
When can a graph represent a normal density function if it is symmetric about its mean? bell-shaped, has a single peak and the highest point is the mean, and it approaches (but never reaches) the horizontal axis and the x increases or decreases.
What distinguishes chapter 7 from chapter 8 and 9? must say “normal” in the question
True or False. You can use a Z-chart for skewed data. False
Name another term for 𝛍. 50th percentile
The area under the normal curve to the right of μ equals​ _______. 1/2
True or false: The normal curve is symmetric about its​ mean, μ. True
The points at x=​_________ and x=​_________ are the inflection points on the normal curve. μ−σ, μ+σ

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