The following data represent scores earned by students in Sullivans Elementary Algebra course for Chapter 2 (Linear
Question:
The following data represent scores earned by students in Sullivan’s Elementary Algebra course for Chapter 2 (Linear Equations and Inequalities in One Variable) and Chapter 3 (Linear Equations and Inequalities in Two Variables). Completely summarize the relation between Chapter 2 and Chapter 3 exam scores, treating Chapter 2 exam scores as the explanatory variable. Write a report detailing the results of the analysis. What does the relationship say about the role Chapter 2 plays in a student’s understanding of Chapter 3?
Chapter 2 Score ....Chapter 3 Score
71.4 ..........76.1
76.2 ..........82.6
60.3 ..........60.9
88.1 ..........91.3
95.2 ..........78.3
82. .......... 100
100 ..........95.7
87.3 ..........81.5
71.4 ..........50.7
95.2 ..........81.5
95.2 ..........87.0
85.7 ..........73.9
71.4 ..........74.6
33.3 ..........45.7
78.0 ..........37.3
83.3 ..........88.0
100 .......... 100
81.0 ..........76.1
76.2 ..........63.0
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To calculate the correlation coefficient we use the computational formula x y x i 2 y i 2 x i y i 714 761 509796 579121 543354 762 826 580644 682276 6...View the full answer
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