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91Ó°ÊÓ

Problem 1

When a line can be drawn through the middle of a curve and both sides of the curve are mirror images of each other, the curve is said to be a _____ curve.

Problem 1

In a normal distribution, and using the 1-2-3 Rule, approximately what percentage of the area under the curve is found between one standard deviation above and below the mean?

Problem 2

In a normal distribution, and using the 1 -2-3 Rule, approximately what percentage of the area under the curve is found between two standard deviations above and below the mean?

Problem 2

When a curve is skewed in a positive direction, it is skewed to the ____ when a curve is skewed in a negative direction, it is skewed to the ____

Problem 3

The points on either side of a normal curve at which the curve begins to change direction are known as the points of _____

Problem 3

In a normal distribution, and using the \(1-2-3\) Rule, approximately what percentage of the area under the curve is found between three standard deviations above and below the mean?

Problem 4

4\. In a normal distribution, the points of inflection are located _____ standard deviation(s) above and below the mean.

Problem 4

In a normal distribution, what percentage of the area under the curve is found above the mean? What percentage of the area under the curve is found below the mean?

Problem 5

Assume that the mean of a distribution of test scores is 62 and the standard deviation is 4 . Your score on the test is 70 . How many standard deviations above or below the mean is your test score?

Problem 5

5\. In a normal distribution, the mean, median, and mode ____

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