Year Number of Polio Cases (thousands) 1988 350 1992 138 1996 32 2000 2. 2005 3.2 2007 1.3

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A:

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Q: Employee Age

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A:

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Q: Cumulative Frequency

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Q: Age/ year SD SD 4.672 4.905 0.572 15-24 0.540 33 4.131 0.596 49 25-29 13 4.517 0.432 14 1:CC

A: It is an important part of statistics. It is widely used.

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.