Since the sample size is very large and the people are unrelated we can assume independent sampling and the probability all three have A+ blood type is the product of their individual probabilities: 3/10 * 3/10 * 3/10 = 27/1000 = 0.027.
Ariel G.
asked • 06/11/20The probability that a person in the United States has A+ blood type is 3/10.
Three unrelated people in the United States are selected at random. Find the probability that all three have A+ blood type
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