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29 March, 05:39

The weights of grapefruits of a certain variety are approximately normally distributed with a mean of 1 pound and a standard deviation of 0.12 pounds. use scenario 6-9. what is the probability that the total weight of three randomly selected grapefruits is more than 3.4 pounds?

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  1. 29 March, 07:40
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    We are given with the condition that

    x > 3.4 lb

    The mean is 1 lb

    The standard deviation is 0.12 lb

    The z-score is

    z = (3.4 - 1) / 0.12

    z = 20

    This corresponds to a probability of 0.842 or 84.20%.
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