Math Problem Statement

The correlation coefficient between the weight of a car(x) and the fuel efficiency(y) is r, equals ​(Type an integer or decimal rounded to three decimal places as​ needed.) X values : 25,33,34,30,31,28 and y values : 21,21,18,20,23,22

Solution

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Math Problem Analysis

Mathematical Concepts

Statistics
Correlation
Linear Relationship

Formulas

Pearson correlation coefficient formula: r = Σ((x - x̄)(y - ȳ)) / sqrt(Σ(x - x̄)^2 * Σ(y - ȳ)^2)

Theorems

Correlation Theorem
Linear Regression Analysis

Suitable Grade Level

Grades 10-12