Mathematics, 12.08.2021 18:40 putaprincess16
The average age of residents in a large residential retirement community is 69 years with standard deviation 5.8 years. A simple random sample of 100 residents is to be selected, and the sample mean age of these residents is to be computed. The probability that the average age, of the 100 residents selected is more than 68.5 years is: Group of answer choices a. 0.805. b.0.568. c. 0.195. d. 0.043.
Answers: 3
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Mathematics, 22.06.2019 03:00
Monthly water bills for a city have a mean of $108.43 and a standard deviation of $36.98. find the probability that a randomly selected bill will have an amount greater than $173, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?
Answers: 3
The average age of residents in a large residential retirement community is 69 years with standard d...
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