An arcraft seam requires 25 rivets. the seam will have to be reworked if any of these rivets is defective. Suppose rivets are defective independently of one another, each with the same probability. a. If 20% of all seams need reworking, what is the probability that a rivet is defective? b. How small should the probability of a defective rivet be to ensure that only 10% of all seams need reworking?
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.
An arcraft seam requires 25 rivets. the seam will have to be reworked if any of these rivets is defective. Suppose rivets are defective independently of one another, each with the same
a. If 20% of all seams need reworking, what is the probability that a rivet is defective?
b. How small should the probability of a defective rivet be to ensure that only 10% of all seams need reworking?
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