SOLUTION: For the first 7 months of the
year, the average precipitation in Toledo, Ohio, is
19.32 inches. If the average precipitation is normally
distributed with a standard deviation of
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-> SOLUTION: For the first 7 months of the
year, the average precipitation in Toledo, Ohio, is
19.32 inches. If the average precipitation is normally
distributed with a standard deviation of
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Question 1161605: For the first 7 months of the
year, the average precipitation in Toledo, Ohio, is
19.32 inches. If the average precipitation is normally
distributed with a standard deviation of 2.44 inches,
find these probabilities.
a. A randomly selected year will have precipitation
greater than 18 inches for the first 7 months.
b. Five randomly selected years will have an average
precipitation greater than 18 inches for the first
7 months. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! z=(x-mean)/sd
=(18-19.32)/2.44
=-0.5410
prob z>=-54.10=0.7057
for 5 years it becomes
z>-1.32*sqrt(5)/2.44 or z>-1.21
0.8869
