Asked by AnswerKing
You use a line best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is .793. How confident can you be that your predicted value will be reasonably close to the actual value?
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 off. ***
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.
*** = my answer
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 off. ***
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.
*** = my answer
Answers
Answered by
MathMate
Agree with your answer.
Correlation coefficient of 0.793 is positive, but not strong.
Follow following link to get a visual interpretation.
https://www.mathsisfun.com/data/correlation.html
Correlation coefficient of 0.793 is positive, but not strong.
Follow following link to get a visual interpretation.
https://www.mathsisfun.com/data/correlation.html
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