A shipment of 80 burglar alarms contains 4 that aredefective. If 3 from the shipment are randomly selectedand shipped to a customer, find the probability that thecustomer will get exactly one bad unit using(a) the formula of 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.
A shipment of 80 burglar alarms contains 4 that are
defective. If 3 from the shipment are randomly selectedand shipped to a customer, find the
customer will get exactly one bad unit using
(a) the formula of the hypergeometric distribution;
(b) the binomial distribution as an approximation.
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