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20 April, 19:12

Carl's Candies has determined that a candy bar measuring 3 inches long has a z-score of + 1 and a candy bar measuring 3.75 inches long has a z-score of + 2. What is the standard deviation of the length of candy bars produced at Carl's Candies?

+1
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  1. 20 April, 19:23
    0
    0.75 inches

    Step-by-step explanation:

    The value that has z=2 is 2 standard deviations from the mean. The value that has z=1 is 1 standard deviation from the mean. The difference between these two values is 1 standard deviation:

    1 standard deviation = 3.75 in - 3 in = 0.75 in
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