Now, using the values for the means that you just calculated, fill out the following table by calculating the deviations from the means for X and Y, the squares of the deviations, and the products of the deviations. Scores X Y 1 00 8 7 2 6 3 9 4 0 10 Deviations X-Mx Y - My The sum of squares for x is SS₂ = Squared Deviations Products (X-Mx)² (Y - My)² (X-MX)(Y - My) Because the sign of the sum of products is The correlation coefficient is r = The sum of squares for y is SSy = The sum of products is SP = the sign of the correlation coefficient Look at your scatter diagram again. If you excluded the point (0, 10), you would expect the recalculated correlation coefficient to be because

Now, using the values for the means that you just calculated, fill out the following table by calculating the deviations from the means for X and Y, the squares of the deviations, and the products of the deviations. Scores X Y 1 00 8 7 2 6 3 9 4 0 10 Deviations X-Mx Y - My The sum of squares for x is SS₂ = Squared Deviations Products (X-Mx)² (Y - My)² (X-MX)(Y - My) Because the sign of the sum of products is The correlation coefficient is r = The sum of squares for y is SSy = The sum of products is SP = the sign of the correlation coefficient Look at your scatter diagram again. If you excluded the point (0, 10), you would expect the recalculated correlation coefficient to be because

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

Section3.3: Modeling Data With Linear Functions

Problem 15SBE

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