A set of data has a correlation coefficient r = 0.15. Is it reasonable to use the line of best fit to make predictions from the

Question

lyudmila [28]

3 years ago

15

A set of data has a correlation coefficient r = 0.15. Is it reasonable to use the line of best fit to make predictions from the

data? yes no Explain your reasoning.

Mathematics

2 answers:

Len [333] · Answer 1 · 2022-06-10T05:56:54+03:00

Len [333]3 years ago

8 0

No its not a good reasonable fit to use a linear regression line. Why not? Because r = 0.15 is closer to r = 0 than it is to r = 1. This is fairly weak linear correlation. If r was say something like r = 0.7 or higher, then it would be stronger linear correlation.

never [62] · Answer 2 · 2022-06-10T08:21:56+03:00

No

Explanation:

It is not reasonable to use the line of best fit to make predictions.

The correlation coefficient for the data is close to zero.

The correlation coefficient measures how well a line fits a set of data.

The correlation coefficient suggests that the relationship between the two variables is weak.