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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.
The data is provided for two variables X and Y.
Excel is used in order to obtain the scatter plot showing the line of best fit. Steps are;
- Enter the data into spreadsheet.
- Go to Insert>Charts>Scatter Plot>OK.
- Click Chart elements and tick trendline.
- Go the trendline options, click more options.
- Select linear in trendline options and by checking display equation on chart, the equation of best fit line is also visible.
- The result is obtained as;
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