In a group of 50 ballpoint pens on a shelf in the stationary department of Metro Department Store, 2 are known to be defective. (Round your answers to three decimal places.) (a) If a customer selects 3 of these pens, what is the probability that at least 1 is defective?(b) If a customer selects 3 of these pens, what is the probability that no more than 1 is defective?
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.
In a group of 50 ballpoint pens on a shelf in the stationary department of Metro Department Store, 2 are known to be defective. (Round your answers to three decimal places.)
(b) If a customer selects 3 of these pens, what is the probability that no more than 1 is defective?
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