(a) How many integers are there from 1,000 through 9,999?   (b) How many odd integers are there from 1,000 through 9,999?   (c) How many integers from 1,000 through 9,999 have distinct digits?   (d) How many odd integers from 1,000 through 9,999 have distinct digits?   (e) What is the probability that a randomly chosen four-digit integer has distinct digits?   What is the probability that a randomly chosen four-digit integer has distinct digits and is odd?

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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.