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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If you'd like, I can walk you through the steps to calculate the correlation coefficient manually, or you can upload a photo of the calculations, and I can help from there.
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Tip: Always check if there are any outliers or unusual points that might affect the correlation!
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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
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