Solution Found!
The extra point revisited The original five points in
Chapter 8, Problem 28E(choose chapter or problem)
Problem 28E
The extra point revisited The original five points in Exercise produce a regression line with slope 0. Match each of the green points (a–e) with the slope of the line after that one point is added:
1) -0.45
2) -0.30
3) 0.00
4) 0.05
5) 0.85
Exercise
The extra point The scatterplot shows five blue data points at the left. Not surprisingly, the correlation for these points is r = 0. Suppose one additional data point is added at one of the five positions suggested below in green. Match each point (a–e) with the correct new correlation from the list given.
1) -0.90
2) -0.40
3) 0.00
4) 0.05
5) 0.75
Questions & Answers
QUESTION:
Problem 28E
The extra point revisited The original five points in Exercise produce a regression line with slope 0. Match each of the green points (a–e) with the slope of the line after that one point is added:
1) -0.45
2) -0.30
3) 0.00
4) 0.05
5) 0.85
Exercise
The extra point The scatterplot shows five blue data points at the left. Not surprisingly, the correlation for these points is r = 0. Suppose one additional data point is added at one of the five positions suggested below in green. Match each point (a–e) with the correct new correlation from the list given.
1) -0.90
2) -0.40
3) 0.00
4) 0.05
5) 0.75
ANSWER:
Step 1 of 5
a) The estimated line through the data will be strongly increasing and thus the slope should be 