QuestionQuestion

Statistics from Cornell's Northeast Regional Climate Center indicate that Ithaca, NEW York, gets an average of 35.4" of rain each year,with a standard deviation of 4.2". Assume that a Normal model applies.
A. During what percentage of year does Ithaca get more than 40" of rain?
B. Less than how much rain falls in the driest 20% of all years?
C. A Cornell University student is in Ithaca for 4 years. Let Y (line above the y) represent the mean amount of rain for those 4 years. Describe the sampling distribution model of this sample mean, y (line above the Y). D. What's the probability that those 4 years average less than 30" of rain?

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