(Step-by-Step) The average age of doctors in a certain hospital is 50.0 years old with a standard deviation of 4.0 years. If 9 doctors are chosen at random
Question: The average age of doctors in a certain hospital is 50.0 years old with a standard deviation of 4.0 years. If 9 doctors are chosen at random for a committee, find the probability that the mean age of those doctors is less than 50.67 years. Assume that the variable is normally distributed.
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Calculator of the Present Value of an Annuity - MathCracker.com