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3. Let X be the height of Zebras, assume the X is a random variable with...

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3. Let X be the height of Zebras, assume the X is a random variable with mean 10 and variance 20. Suppose Y is be the weight of Zebras, assume the Y is a random variable with mean 10 and variance 40. Let E(XY)-80 (a) Find the covariance and correlation between X and Y. Find the covariance and correlation between aX + b and cY + d. a,b,c, and d are unknown constants. Your answer can depend on them. (b) Suppose that you collected heights and weights of 10 zebras HeightWeight .10 03 .19 . 12 04 5 2 9 8 3 Find the sample means, variances, covarianace,and correlation from the above data.
3. Let X be the height of Zebras, assume the X is a random variable with mean 10 and variance 20. Suppose Y is be the weight of Zebras, assume the Y is a random variable with mean 10 and variance 40. Let E(XY)-80 (a) Find the covariance and correlation between X and Y. Find the covariance and correlation between aX + b and cY + d. a,b,c, and d are unknown constants. Your answer can depend on them. (b) Suppose that you collected heights and weights of 10 zebras HeightWeight .10 03 .19 . 12 04 5 2 9 8 3 Find the sample means, variances, covarianace,and correlation from the above data.

Answers

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