# Question

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

1) - 0.90

2) - 0.40

3) 0.00

4) 0.05

5) 0.75

## Answer to relevant Questions

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 Here’s a plot showing the federal rate on 3-month Treasury bills from 1950 to 1980, and a regression model fit to the relationship between the Rate (in %) and Years since 1950. (www.gpoaccess.gov/eop/) a) What is the ...For each of the models listed below, predict y when x = 2. a. y-hat = 1.2 + 0.8x b. In y-hat = 1.2 + 0.8x c. y-hat = 1.2 + 0.8x d. 1/y = 1.2 + 0.8x e. y-hat = 1.2x0.8 Many professions use tables to determine key quantities. The value of a log is based on the number of board feet of lumber the log may contain. (A board foot is the equivalent of a piece of wood 1 inch thick, 12 inches wide, ...The bookstore in Exercise decides to have a gala event in an attempt to drum up business. They hire 100 employees for the day and bring in a total of $ 42,000. a) Find the regression line predicting Sales from Number of ...Post your question

0