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1.) When traveling by raft, the time it takes to float from Ohiopyle to Pittsburgh is...

1.) When traveling by raft, the time it takes to float from Ohiopyle to Pittsburgh is uniformly distributed with a minimum of 81 minutes and a maximum of 135 minutes. What is the probability that it takes between 90 and 126 minutes to float this length of the river? (Round to 3 decimals)

2.) The number of flu vaccines given out in a given day follows a distribution with a mean of 25 and a standard deviation of 6. Suppose you select 4 random days to evaluate. What is the standard error of this sample mean?

3.) Alfie Solomons owns a rum distillery. On average, he produces 100 liters of rum with a standard deviation of 18 liters. What is the probability of producing an average of 90 liters of rum or more over the course of 9 days?

Math   Statistics-And-Probability   
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