Math Problem Statement
The following is the data obtained in the study of the number of absences and the final grade of the seven students in the mathematics class. Construct a scatter diagram for these data.
Calculate the correlation of coefficient (r). Interpret the results.
Find the regression equation.
Plot a regression line on the scatter diagram of part (a).
Predict the final grade with 10 number of absences.
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Correlation
Regression Analysis
Prediction
Formulas
Correlation coefficient formula
Linear regression equation y = mx + b
Theorems
Least squares method for linear regression
Suitable Grade Level
High School
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