Question

How can I predict the number for 2021 by using the line of best fit r=.9925 m=615.769 b= -1.2045×10^6

Answer 1

The formula for the best fitting line is

`y=mx+b`

Where m si the slope of the regression line and b is the y-intercept

Now at point

`x=2021`

We shall get

`y=615.769*2021-(1.2045*10^6)`
`y=39969.149`

So number for 2021 can be predicted by the equation of the given line.