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Mathematics, 06.09.2021 07:50 mckenziealexander

Average age of teaching staff in a certain institution is 51.0 yrs old. Assume that the distribution age is normal and has a standard deviation of 8.0 years. If 9 teaching staff are chosen at random for a committee, find the probability that the average age of those teaching staff is less than 52.9 years

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Average age of teaching staff in a certain institution is 51.0 yrs old. Assume that the distribution...
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