Name Test Mark (x) Homework (y)

Question

Rob 61 35
Thomas 95 50
Mark 44 5
Wanda 93 50
Judy 63 15
Haydn 80 34
Barbara 62 16
Karen 95 50
Marilyn 65 7
Phil 88 38

A. What is the equation for the Linear Regression Line? _____________

B. There is a ________________________
correlation between the test marks and the homework marks.

C. The slope of the line best fit can be used to make a probabilistic interpretation that states ________________

Answer 1

A. The equation for the Linear Regression Line is y = 0.527x + 4.073.

B. There is a strong positive correlation between the test marks and the homework marks.

C. The slope of the line best fit can be used to make a probabilistic interpretation that states for every unit increase in the test mark, the homework mark is expected to increase by 0.527 units on average.