Math Problem Statement
A large group of test scores is normally distributed with mean 65.2 and standard deviation 8.3.You scored 78.5 what is the z score? What percent do you think you are in?
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Normal Distribution
Z-Score
Formulas
Z-score formula: z = (x - μ) / σ
Theorems
Empirical Rule (68-95-99.7 rule)
Suitable Grade Level
Grades 9-12
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