You generate a scatter plot using Excel. You then have Excel plot the trend line and report the equation and the r? value. The regression equation is reported as y = – 61.46x + 41.55 and the r? = 0.16. What is the correlation coefficient for this data set? r=

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A: We have given thatn = 1056 x = 592 Significance level (α) = 1 - 0.90 = 0.10

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Q: If X and Y are independent, then p(X, Y) = 0

A: The basic rules for mean and variance when two variables are independent are  E[XY] = E[X] E[Y]…

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Q: Example 48. Compute Q,, Q, and Q, of the following data: 13, 14, 7, 12, 17, 8, 10, 6, 15, 18, 21, 20

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A: From the provided information, Two coins are tossed once. Total number of outcomes = 22 = 4

Q: and the r = 0.6241. What is the correlation coefficient for this data set? r =

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A: *Answer: