Statistics from a college's climate center indicate that the city the college is in gets an...
Statistics from a college's climate center indicate that the city the college is in gets an average of 35.9" of rain each year, with a standard deviation of 4.2". Assume that a Normal model applies. Complete parts a through d below.
a) During what percentage of years does this city get more than 42" of rain? The percentage of years with more than 42" of rain is nothing%.
Homework Answers
Solution :
Given that ,
mean = 
= 35.9
standard deviation = 
= 4.2
P(x > 42) = 1 - P(x < 42)
= 1 - P[(x -
) /
< (42 - 35.9) / 4.2)
= 1 - P(z < 1.45)
= 1 - 0.9265
= 0.0735
percentage = 7.35%
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