Mathematics, 10.11.2019 03:31 cody1097
Aresearch team at cornell university conducted a study showing that approximately 10% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain, diminishing cerebral functions (source: chances: risk and odds in everyday life, by james burke). at a board meeting of 20 businessmen, all of whom wear ties, what is the probability that:
a) at least 5 ties are too tight?
b) at most 12 ties are too tight?
Answers: 1
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