The owner of a fish market determined that the mean weight for a catfish is 3.2 pounds with a standard deviation of 0.8 pound. Assuming the weights of catfish are normally distributed, what is the probability that a randomly selected catfish will weigh between 2 and 4 pounds?
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We are given the mean weight (μ) and standard deviation (σ) of catfish: μ = 3.2 pounds and σ = 0.8 pound. Show more…
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The owner of a fish market determined that the average weight for a catfish is 3.2 pounds with an unknown standard deviation. He also knew that the probability of a randomly selected catfish that would weigh more than 3.8 pounds is 20% and the probability that a randomly selected catfish that would weigh less than 2.8 pounds is 30%. What is the probability that a randomly selected catfish will weigh between 2.6 and 3.6 pounds?
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The owner of a fish market determined that the mean weight for a catfish is 3.2 pounds with a standard deviation of 0.8 pound. Assuming the weights of catfish are normally distributed, the probability that a randomly selected catfish will weigh less than 2.2 pounds is ________. Use 4 significant digits in your answer.
Ajiboye T.
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