A batch of 25 injection-molded parts contains 5 that have suffered excessive shrinkage. (a) If two parts are selected at random, and without replacement, what is the probability that the second part selected is one with excessive shrinkage? (b) If three parts are selected at random, and without replacement, what is the probability that the third part selected is one with excessive shrinkage?
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 batch of 25 injection-molded parts contains 5 that
have suffered excessive shrinkage.
(a) If two parts are selected at random, and without replacement, what is the
(b) If three parts are selected at random, and without replacement, what is the probability that the third part selected is one with excessive shrinkage?
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