Experiment to test the potency of a drug

Reference no: EM13100179

"An experiment is designed to test the potency of a drug on 20 rats. Previous animal studies have shown that 10-mg dose of the drug is lethal 5% of the time within the first 4 hours; of the animals alive at 4 hours, 10% will die in the next 4 hours. What is the probability that 2 rats will die in the 8 hour period?"

Reference no: EM13100179

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