Math Problem Statement
The population mean is 102.4. The population standard deviation is 106.5. What percentage of the 50 regions have stores within plus minus 1 standard deviations of the mean?
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Normal Distribution
Standard Deviation
Empirical Rule
Formulas
-
Theorems
Empirical Rule (68-95-99.7 rule)
Suitable Grade Level
College
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