The following table summarizes the outcome for 70 people who attended a picnic, some of whom ate potato salad and some of whom became ill. Became ILL Yes No Total Salad-Yes 22 24 46 Salad-No 1 23 24 Total 23 47 70
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 following table summarizes the outcome for 70 people who attended a picnic, some of whom ate potato salad and some of whom became ill.
|
|
Became ILL |
|
|
|
|
Yes |
No |
Total |
|
Salad-Yes |
22 |
24 |
46 |
|
Salad-No |
1 |
23 |
24 |
|
Total |
23 |
47 |
70 |
If X is the probability that a person becomes ill given that he/she ate salad, use Fisher’s Exact Test to compute P(X ≥ 22).
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