Name Test Mark (x) Homework (y)
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 ________________
Responses
y= -37x + 1
y= 0.89x-36.7
y= 0.7x-38
y=-x+37
no correlation
positive
negative
The test mark increases 1 pt for every 1 pt on the homework mark.
The homework mark increases 0.89 points for every 1 pt. on the test mark.
The test mark decreases 0.7 pts for every 1 on the homework mark.
The homework mark increases 37 pts for every 1 pt. on the test mark
A. The equation for the Linear Regression Line is y= 0.89x-36.7.
B. There is a 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 the homework mark increases 0.89 points for every 1 pt. on the test mark.