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A shipment of chemicals arrives in 15 totes. Three of the
Chapter 3, Problem 186SE(choose chapter or problem)
Problem 186SE
A shipment of chemicals arrives in 15 totes. Three of the totes are selected at random without replacement for an inspection of purity. If two of the totes do not conform to purity requirements, what is the probability that at least one of the nonconforming totes is selected in the sample?
Questions & Answers
QUESTION:
Problem 186SE
A shipment of chemicals arrives in 15 totes. Three of the totes are selected at random without replacement for an inspection of purity. If two of the totes do not conform to purity requirements, what is the probability that at least one of the nonconforming totes is selected in the sample?
ANSWER:
Solution 186SE
Step1 of 2:
Let us consider a random variable X it presents the number of totes that are impure. Also we have N = 15, r = 2, and n = 3.
We need to find the probability that at least one of the nonconforming totes is selected in the sample.