An experiment is designed to test the potency of a drug on 20 rats. Previous animal studies have shown that a 10-mg dose is lethal 5% of the time within the first 4 hours; of the animals alive at 4...

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An experiment is designed to test the potency of a drug on 20 rats. Previous animal studies have shown that a 10-mg dose 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. (This is a 3 part problem)


a) What is the probability that 3 or more rats will die in the first 4 hours?


b) What is the probability that 0 rats will die in the 8 hour period?


c) What is the probability that 2 rats will die in the 8 hour period?



Answered Same DayDec 20, 2021

Answer To: An experiment is designed to test the potency of a drug on 20 rats. Previous animal studies have...

David answered on Dec 20 2021
112 Votes
An experiment is designed to test the potency of a drug on 20 rats. Previous animal studies have
s
hown that a 10-mg dose 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. (This is a 3 part problem) a) What is the probability that 3 or
more rats will die in the first 4 hours? b) What is the probability that 0 rats will die in the 8 hour
period? c) What is the probability that 2 rats will die in the 8 hour period?
Solution:
a)...
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