Mammals Birds Reptiles Amphibians United States 63 78 14 10 Foreign 251 175 64 8 2. find the probability a randomly selected species is foreign, in deciaml form
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.
|
|
Mammals |
Birds |
Reptiles |
Amphibians |
|
United States |
63 |
78 |
14 |
10 |
|
Foreign |
251 |
175 |
64 |
8 |
2. find the
Given the contingency table as follows:
| Mammals | Birds | Reptiles | Amphibians | Total | |
| United states | 63 | 78 | 14 | 10 | 165 |
| Foreign | 251 | 175 | 64 | 8 | 498 |
| Total | 314 | 253 | 78 | 18 | 663 |
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