Math Problem Statement
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Sales Comparison
Standard Deviation
Z-Score
Formulas
Z = (X - μ) / σ where X = actual value, μ = mean (average), and σ = standard deviation
Theorems
Z-Score Theorem: A measure of how many standard deviations an element is from the mean
Suitable Grade Level
Grades 10-12
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