The table below shows the number of endangered and threatened animal species in the United States as of November,30,1998. Mammals Birds Reptiles Amphibians Others Total Endangered 59 75 14 19 198 355 Threatened 15 21 7 69 120 Total 67 90 35 16 267 475 If an animal species is selected at random, find the probability that the animal species is an endangered, given that the animal species is a reptile. Select one: O a. 0.0394 O b. 0.0474 c. 0.0294 O d. 0.4

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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.