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 =
