The table below shows the IQ of ten students and the number of hours of TV each watches per week. IQ 110 105 120 140 100 125 130 105 115 110 TV 12 14 6 2 14 8 6 4 13 3 (a) Use a calculator or computer to find the least squares regression line, y=mx+b, where the dependent variable y denotes the number of hours of T watched as a function of IQ, x. Enter the equation for the line below. (b) What is the correlation coefficient of the regression line? Enter t accurate to at least three decimal places.)
The table below shows the IQ of ten students and the number of hours of TV each watches per week. IQ 110 105 120 140 100 125 130 105 115 110 TV 12 14 6 2 14 8 6 4 13 3 (a) Use a calculator or computer to find the least squares regression line, y=mx+b, where the dependent variable y denotes the number of hours of T watched as a function of IQ, x. Enter the equation for the line below. (b) What is the correlation coefficient of the regression line? Enter t accurate to at least three decimal places.)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:The table below shows the IQ of ten students and the number of hours of TV each watches per week.
IQ 110 105 120 140 100 125 130 105 115 110
TV 12 14 6 2 14 8 6 4 13 3
(a) Use a calculator or computer to find the least squares regression line, y=mx+b, where the dependent variable y denotes the number of hours of TV
watched as a function of IQ, x. Enter the equation for the line below.
(b) What is the correlation coefficient of the regression line?
r=
(Enter r accurate to at least three decimal places)
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