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A loaf of bread is normally distributed with a mean of 22 ounces and a standard deviation of .5 ounces. What is the probability that a loaf of bread is < 20.75 ounces?

  • statistics - ,

    Z = (x - μ)/SD

    Z = (20.75 - 22)/.5

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion less than that Z score.

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