Math Problem Statement
The data below are the temperatures on randomly chosen days during a summer class and the number of absences on those days. Calculate the correlation coefficient, r. Start 2 By 10 Table 1st Row 1st Column Temperatur comma x 2nd Column 76 3rd Column 89 4st Column 95 5st Column 94 6st Column 92 7st Column 102 8st Column 79 9st Column 104 10st Column 84 2nd Row 1st Column Number of absences comma y 2nd Column 11 3rd Column 15 4st Column 18 5st Column 18 6st Column 16 7st Column 23 8st Column 12 9st Column 23 10st Column 13 EndTable
Question content area bottom Part 1 A. 0.890 B. 0.980 C. 0.819 D. 0.881
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Correlation Coefficient
Formulas
Pearson correlation coefficient formula: r = Σ((x - mean(x))(y - mean(y))) / sqrt(Σ(x - mean(x))^2 * Σ(y - mean(y))^2)
Theorems
Pearson correlation theorem
Suitable Grade Level
Grades 10-12
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Interpretation of Correlation Coefficient r = 0.91