Math Problem Statement
The annual rainfall in a certain region is approximately normally distributed with mean 41.3 inches and standard deviation 6 inches. Round answers to the nearest tenth of a percent.
a) What percentage of years will have an annual rainfall of less than 43 inches? % b) What percentage of years will have an annual rainfall of more than 39 inches? % c) What percentage of years will have an annual rainfall of between 37 inches and 42 inches? %
Solution
Math Problem Analysis
Mathematical Concepts
Normal Distribution
Zscore
Probability
Formulas
Zscore formula: z = (x  μ) / σ
Theorems

Suitable Grade Level
Grades 1112
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