SOLUTION: The weight of a grapefruit from a large shipment averages 15 oz. with a standard deviation of 2 oz. If these weights are normally distributed and if a grapefruit is picked at ran

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Question 1150349: The weight of a grapefruit from a large shipment averages 15 oz. with a standard deviation of 2 oz. If these weights are normally distributed and if a grapefruit is picked at random, what is the probabilty that it will weigh between 13 & 14 oz?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z=(x-mean)/sd
so z is between (14-15)2 or -1/2 and (13-15)/2 or -1
that probability is 0.1499