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What is the probability the length of an Atlantic croaker is less than 8 inches? Between 8 and 12 inches?

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1. The lengths of Atlantic croaker fishes are normally distributed, with a mean of 9 inches and a standard deviation of 2.56 inches. An Atlantic croaker fish is randomly selected.

a. Find the probability that the length of the fish is less than 8 inches.

b. Find the probability that the length of the fish is between 8 and 12 inches

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Solution Summary

This solution shows step by step calculations for the probability of the length of the croaker fish.

Solution Preview

M = 9 inches, SD = 2.56 inches

z = (x - M)/SD

(a) x = 8

z = (8 - ...

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