Ten freshmen civil engineering students took a test in Mathematics (x) and Chemistry (y). Theirscores are found below. Compute the correlation coefficient and interpret the results.12158106.1011579y1316711912968.9.

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Answered: Ten freshmen civil engineering students…

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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Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. Then calculate it again, letting Row 2 represent the x-values and Row 1 the y-values. What effect does switching the variables have on r? Row 1 19 23 31 49 51 70 79 Row 2 156 155 190 141 202 191 181 Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. r= 0.430 (Round to three decimal places as needed.) Calculate the correlation coefficient r, letting Row 2 represent the x-values and Row 1 the y-values. (Round to three decimal places as needed.)
9. Tell whether the correlation coefficient would be closest to -1, 0 or 1. a. b. с. 150 150 150 100 100 100 50 50 50 0 2 4 6 x 0 2 4 6x 0 2 4 6 x
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Ten freshmen civil engineering students took a test in Mathematics (x) and Chemistry (y). Their scores are found below. Compute the correlation coefficient and interpret the results. 10 11 12 15 16 10 12 11 9 X 7 y 13 9 8 9.