3. LINEAR REGRESSION AND CORRELATION COEFFICIENT: Consider the following data set: x-7 -5 -1 6. y 11 8 -4 (a) Use your calculator to find the linear regression equation for the data set above. (b) Find the correlation coefficient for the data set. Calculator Tips: It's probably good to remember how to find the line of best fit and the correlation coefficient by hand. But such computations can be tedious if the data set is big. Your graphing calculator can find the linear regression equation and the cor- relation coefficient. Click here or here for video tutorials on performing linear regression and finding the correlation coefficient, r, using a calculator. The two linked videos use different versions of the TI-89 calculator. The course textbook also has instructions at the end of section 1.3 (pg. 80-82). very

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Author:James Stewart
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Chapter1: Functions And Models
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3. LINEAR REGRESSION AND CORRELATION COEFFICIENT:
Consider the following data set:
X
-7
-5 -1
y
11
21
-4
(a) Use your calculator to find the linear regression equation for the data set
above.
(b) Find the correlation coefficient for the data set.
Calculator Tips: It's probably good to remember how to find the line of best
fit and the correlation coefficient by hand. But such computations can be very
tedious if the data set is big.
Your graphing calculator can find the linear regression equation and the cor-
relation coefficient. Click here or here for video tutorials on performing linear
regression and finding the correlation coefficient, r, using a calculator. The two
linked videos use different versions of the TI-89 calculator. The course textbook
also has instructions at the end of section 1.3 (pg. 80-82).
Transcribed Image Text:3. LINEAR REGRESSION AND CORRELATION COEFFICIENT: Consider the following data set: X -7 -5 -1 y 11 21 -4 (a) Use your calculator to find the linear regression equation for the data set above. (b) Find the correlation coefficient for the data set. Calculator Tips: It's probably good to remember how to find the line of best fit and the correlation coefficient by hand. But such computations can be very tedious if the data set is big. Your graphing calculator can find the linear regression equation and the cor- relation coefficient. Click here or here for video tutorials on performing linear regression and finding the correlation coefficient, r, using a calculator. The two linked videos use different versions of the TI-89 calculator. The course textbook also has instructions at the end of section 1.3 (pg. 80-82).
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