You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data is -0.993. How confident can you be that your predicted value will be reasonably close to the actual value?

Question

a. I can't be confident at all; this is about as close to a random guess as you can get.
b. I can be a little confident; it might be close; or it might be way of.
c. I can be very confident; it will be close, but it probably won't be exact.***
d. I can be certain that my predicted value will match the actual value exactly.

Answer 1

I agree.