A random sample of 1000 Americans was taken, and these adults were asked if experience in politics was necessary for a candidate to be president of America. The following table presents the results of the survey . Test at a 1% significance level whether gender and opinions are related. Necessary Not Necessary No Opinion Men 260 220 70 Women 230 180 40
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.
. A random sample of 1000 Americans was taken, and these adults were asked if experience in politics was necessary for a candidate to be president of America. The following table presents the results of the survey . Test at a 1% significance level whether gender and opinions are related.
|
|
Necessary |
Not Necessary |
No Opinion |
|
Men |
260 |
220 |
70 |
|
Women |
230 |
180 |
40 |
Test at a 1% significance level whether gender and opinions are related.
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