Question

Which equation could be a prediction equation for data points shown in the scatter plot below below?

Answer 1

By means of the given values, we can find the approximate linear regression model, which is given by

where the approximate linear model is given by

`y=2.27x+622.87`

By converting into decimal form the given lines, we can see that the second option:

`y=(11)/(5)x+650`

can be rewritten as

`y=2.2x+650`

which is very similar to our linear regression model. Therefore, the answer is option 2 from top to bottom:

`y=(11)/(5)x+650`