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The covariance between X and Y is calculated and recorded as sXY (and sxy is a negative number). A linear transformation is performed on X. The linearly transformed variable is called W, where W; = 5 + X¡. The covariance between W and Y is calculated and recorded as sWY. Which statement is correct? In this example, swy would be less than sxY. In this example, swy would be equal to sxy. In this example, swy would be greater than sxY. A) B) 6.

The covariance between X and Y is calculated and recorded as sXY (and sxy is a negative number). A linear transformation is performed on X. The linearly transformed variable is called W, where W; = 5 + X¡. The covariance between W and Y is calculated and recorded as sWY. Which statement is correct? In this example, swy would be less than sxY. In this example, swy would be equal to sxy. In this example, swy would be greater than sxY. A) B) 6.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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6. The covariance between X and Y is calculated and recorded as SXY (and sxy is a negative number). A linear transformation is performed on X. The linearly transformed variable is called W, where W; = 5 + Xi. The covariance between W and Y is calculated and recorded as sWY. Which statement is correct? A) В) In this example, swy would be less than sxY. In this example, swY Would be equal to sxY. In this example, swy would be greater than SXXY. 7. The covariance between X and Y is calculated and recorded as sxy (and sxy is a positive number). A linear transformation is performed on X. The linearly transformed variable is called W, where W; = (4)X;. The covariance between W and Y is calculated and recorded as sWY. Which statement is correct? In this example, sxY would be less than swy. In this example, sxY Would be equal to swy. In this example, sxY would be greater than sWY. A) B) 8. The correlation between X and Y is calculated and recorded as rxY (and rxy is positive). A linear transformation is performed on X. The linearly transformed variable is called W, where Wi = 2 + Xị. The correlation between W and Y is calculated and recorded as rwY. In this example, rxy might be the same as rwy, but might not be rxy Would definitely be the same as rwY rxy would definitely not be the same as rWY A) В)
Transcribed Image Text:6. The covariance between X and Y is calculated and recorded as SXY (and sxy is a negative number). A linear transformation is performed on X. The linearly transformed variable is called W, where W; = 5 + Xi. The covariance between W and Y is calculated and recorded as sWY. Which statement is correct? A) В) In this example, swy would be less than sxY. In this example, swY Would be equal to sxY. In this example, swy would be greater than SXXY. 7. The covariance between X and Y is calculated and recorded as sxy (and sxy is a positive number). A linear transformation is performed on X. The linearly transformed variable is called W, where W; = (4)X;. The covariance between W and Y is calculated and recorded as sWY. Which statement is correct? In this example, sxY would be less than swy. In this example, sxY Would be equal to swy. In this example, sxY would be greater than sWY. A) B) 8. The correlation between X and Y is calculated and recorded as rxY (and rxy is positive). A linear transformation is performed on X. The linearly transformed variable is called W, where Wi = 2 + Xị. The correlation between W and Y is calculated and recorded as rwY. In this example, rxy might be the same as rwy, but might not be rxy Would definitely be the same as rwY rxy would definitely not be the same as rWY A) В)
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