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1. The weights of fish in a certain lake are normally distributed with a mean of 12 pounds and a population standard deviation of 4.2 pounds. If 64 fish are randomly selected from this lake, what is the probability that their mean weight will be at least 13 pounds?

1. The weights of fish in a certain lake are normally distributed with a mean of 12 pounds and a population standard deviation of 4.2 pounds. If 64 fish are randomly selected from this lake, what is the probability that their mean weight will be at least 13 pounds?

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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1. The weights of fish in a certain lake are normally distributed with a mean of 12 pounds and a population standard deviation of 4.2 pounds. If 64 fish are randomly selected from this lake, what is the probability that their mean weight will be at least 13 pounds?
Transcribed Image Text:1. The weights of fish in a certain lake are normally distributed with a mean of 12 pounds and a population standard deviation of 4.2 pounds. If 64 fish are randomly selected from this lake, what is the probability that their mean weight will be at least 13 pounds?
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