QUESTION 24 Consider the following data x 81 75 71 61 96 56 85 18 y 80 82 83 57 100 30 68 56 (a) Calculate the covariance of x and y, denoted Sx y: (4) (b) Calculate the least
QUESTION 24 Consider the following data x 81 75 71 61 96 56 85 18 y 80 82 83 57 100 30 68 56 (a) Calculate the covariance of x and y, denoted Sx y: (4) (b) Calculate the least
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 15CR: Life Expectancy The following table shows the average life expectancy, in years, of a child born in...
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QUESTION 24
Consider the following data
x 81 75 71 61 96 56 85 18
y 80 82 83 57 100 30 68 56
(a) Calculate the
(b) Calculate the least squares (b0 and b1) and provide the regression equation yO D b0 C b1x:(5)
(c) Calculate the coefficient of
(d) Calculate the coefficient of determination? (2)
(e) What does the coefficient of determination tells you? (2)
[18]
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