Q. 4.34
Question
Regarding a scatterplot,
a. Identify one of its uses.
b. What property should it have to obtain a regression line for the data?
Step-by-Step Solution
Verified Answer
(a) It is easy to determine the regression slope.
(b) Data should have linear pattern.
1Part (a) Step 1: Given information
We need to find the uses of scatterplot
2Part (a) Step 2: Explanation
The use of scatterplot is,
It is easy to determine whether the regression line is vertically upward, vertically downward, or horizontal, without having to calculate the slope.
3Part (b) Step 1: Given information
We need to find the property of regression line.
4Part (b) Step 2: Explanation
The required property is,
Data should probably have a liner pattern (points lying probably around the line).
Other exercises in this chapter
Q. 4.42
a) Plot the data points and the first linear equation on one graph and the data points and the second linear equation on another.(b) Construct tables for x
View solution Q. 4.46
For a data set consisting of two data points:a. identify the regression line.b. What is the sum of squared errors for the regression line? Explain your answer.
View solution Q. 4.35
Regarding the criterion used to decide on the line that best fits a set of data points,a. What is that criterion called?b. Specifically, what is the criterion?
View solution Q. 4.36
Regarding the line that best fits a set of data points,a. What is that line called?b. What is the equation of that line called?
View solution