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Statement I: in the Mid-1990s,before the Passage of the Welfare

question 267

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Statement I: In the mid-1990s,before the passage of the Welfare Reform Act of 1996,our poverty rate was the highest in history.
Statement II: The welfare rolls began falling two years before the passage of the Welfare Reform Act of 1996.


Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values in the data set differ from the mean.

Standard Normal Random Variable

A random variable with a mean of 0 and a standard deviation of 1 under the normal distribution.

Probability

Refers to the degree of certainty associated with the occurrence of a specific outcome in a random event.

z

Often symbolizes the standard score in statistics, indicating how many standard deviations an element is from the mean.

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