Select all the values for r that indicate a positive slope for the line of best fit.
S.ID.8
S.ID.6.a
1
2.
The correlation coefficient, r, is given for several different linear models for a data set. Which value for indicates the best fit for the data?
S.ID.8
S.ID.6.a
1
3.
Which of the values is the best estimate of the correlation coefficient for the line of best fit shown in the scatter plot?
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S.ID.6.a
1
4.
1
5.
1
6.
Tyler creates a scatter plot that displays the relationship between the grams of food a hamster eats, x, and the total number of rotations that the hamster’s wheel makes, y. Tyler creates a line of best fit and finds that the residual for the point (1.4,1250) is -132. The point (1.2,1364) has a residual of 117. Interpret the meaning of 117 in the context of the problem.
S.ID.8
S.ID.6.a
This lesson is from Illustrative Mathematics. Algebra 1, Unit 3, Lesson 7. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/1/3/7/index.html ; accessed 26/July/2021.
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