The mean number of daily surgeries at a local hospital is 6.2. Assume that surgeries are...

The mean number of daily surgeries at a local hospital is 6.2. Assume that surgeries are random, independent events.

(a) The count of daily surgeries follows approximately:

A Poisson distribution with mean 6.2 and standard deviation 2.49.

A binomial distribution with mean 6.2 and standard deviation 3.8.

A binomial distribution with mean 6.2 and standard deviation 1.76.

A Poisson distribution with mean 6.2 and standard deviation 6.2.

A binomial distribution with mean 6.2 and standard deviation 3.1.

(b) The probability that there would be only 2 or fewer surgeries in a given day is approximately (round to 4 decimal places):

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orchestra answered 1 year ago

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