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2. The following table shows the weights(?) to the nearest pound, heights(X) to the nearest inch, and ages(y) to the nearest year, of 12 boys 2: X: y: (i) (ii) (iii) 94 57 8 77 59 10 53 49 6 67 62 27 55 51 8 58 50 ㅋ ㅋㅋ 55 70 57 48 9 56 52 70 57 42 6 Find and plot the least-squares regression equation of Zon X and Y. Determine the estimated values of 7 from the given values of X and Y. Estimate the weight of a boy who is 9 years old and 54 inches tall. 76 67 12 68 57 9

2. The following table shows the weights(?) to the nearest pound, heights(X) to the nearest inch, and ages(y) to the nearest year, of 12 boys 2: X: y: (i) (ii) (iii) 94 57 8 77 59 10 53 49 6 67 62 27 55 51 8 58 50 ㅋ ㅋㅋ 55 70 57 48 9 56 52 70 57 42 6 Find and plot the least-squares regression equation of Zon X and Y. Determine the estimated values of 7 from the given values of X and Y. Estimate the weight of a boy who is 9 years old and 54 inches tall. 76 67 12 68 57 9

College Algebra
College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter4: Linear Functions
Section: Chapter Questions
Problem 30PT: For the following exercises, use Table 4 which shows the percent of unemployed persons 25 years or...
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2. The following table shows the weights(7) to the nearest pound, heights(X) to the nearest inch, and ages(Y) to the nearest year, of 12 boys :2 X: 94 53 67 55 58 57 56 57 76 68 57 59 62 51 50 55 52 42 61 57 y: 10 6 8. 10 9. 10 12 9. Find and plot the least-squares regression equation of 7 on X and Y. Determine the estimated values of 7 from the given ualues of X and Y. Estimate the weight of a boy who is 9 years old and 54 inches tall. Calculate the multiple correlation coefficient between 7 and (X,Y). Calculate the partial correlation coefficient R between and X. z x .Y (i) (ii) (iii) (iv) (u)
Transcribed Image Text:2. The following table shows the weights(7) to the nearest pound, heights(X) to the nearest inch, and ages(Y) to the nearest year, of 12 boys :2 X: 94 53 67 55 58 57 56 57 76 68 57 59 62 51 50 55 52 42 61 57 y: 10 6 8. 10 9. 10 12 9. Find and plot the least-squares regression equation of 7 on X and Y. Determine the estimated values of 7 from the given ualues of X and Y. Estimate the weight of a boy who is 9 years old and 54 inches tall. Calculate the multiple correlation coefficient between 7 and (X,Y). Calculate the partial correlation coefficient R between and X. z x .Y (i) (ii) (iii) (iv) (u)
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