3. Rainfall 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 years 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 represent the mean amount of rain for those 4 years. Describe the sampling distribution model of this sample mean, y.
d) What's the probability that those 4 years average less than 30% of rain?
Students succeed in their courses by connecting and communicating with an expert until they receive help on their questions
Consult our trusted tutors.
Login | Sign Up
