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Distributed random variable with a mean

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Reference no: EM132461940

The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 400 grams and a standard deviation of 20 grams. Find the weight that corresponds to each event. (Use Excel or Appendix C to calculate the z-value. Round your final answers to 2 decimal places.)

a.Highest 20 percent ____

b.Middle 60 percent _____ to _____

c.Highest 80 percent ____

d.Lowest 15 percent ____

Reference no: EM132461940

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