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The number of pizzas consumed per month by university students is normally distributed with a mean...

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Statistics

The number of pizzas consumed per month by university studentsis normally distributed with a mean of 8 and a standard deviationof 4. Use Excel to answer the following questions:

A. What proportion of students consume more than 9 pizzas permonth?

Probability =

B. What is the probability that in a random sample of size 9, atotal of more than 81 pizzas are consumed? (Hint: What is the meannumber of pizzas consumed by the sample of 9 students?)

Probability =

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