Among the 300 employees of a company, 240 areunion members, whereas the others are not. If 6 of theemployees are chosen by lot to serve on a committee thatadministers the pension fund, find the probability that 4of the 6 will be union members using(a) the formula for the hypergeometric distribution;(b) the binomial distribution as an approximation.
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.
Among the 300 employees of a company, 240 are
union members, whereas the others are not. If 6 of the
employees are chosen by lot to serve on a committee that
administers the pension fund, find the
of the 6 will be union members using
(a) the formula for the hypergeometric distribution;
(b) the binomial distribution as an approximation.
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