Find probability that average diameter is more-centimeters

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The average diameter of sand dollars on a certain island is 3.00 centimeters with a standard deviation of 0.80 centimeters. If 9 sand dollars are chosen at random for a collection, find the probability that the average diameter of those sand dollars is more than 2.707 centimeters. Assume that the variable is normally distributed.

Reference no: EM13136887

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