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21-12-2022
Mathematics

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the owner of a fish market determined that the mean weight for a catfish is 3.2 pounds assuming that the weight of a catfish follows a normal distribution and its standard deviation is unknown. he also knew that the probability of a randomly selected catfish that wold weight 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 weight between 2.6 and 3.6 pounds?

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