Question

For each of the six plots, identify the strength of the relationship (e.g., weak, moderate, or strong) in the data and whether fitting a linear model would be reasonable. (Note: Problem 6.2 on page 317 of the VH textbook). Explain your answer in 1 sentence.

a) Weak, fitting a linear model is reasonable.
b) Moderate, fitting a linear model is reasonable.
c) Strong, fitting a linear model is reasonable.
d) None of the above.

Answer 1

In these plots, the strength of the relationship and the reasonableness of fitting a linear model are discussed.

Step-by-step explanation:

a) In the first plot, the relationship is weak but fitting a linear model is reasonable because the data points roughly follow a straight line.

b) In the second plot, the relationship is moderate and fitting a linear model is reasonable because the data points tend to cluster around a line.

c) In the third plot, the relationship is strong and fitting a linear model is reasonable because the data points form a clear linear pattern.

d) None of the above.