Notation: Var Variance; sd = standard deviation; cov = covariance; Corr = correlation and E =...
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Notation: Var Variance; sd = standard deviation; cov = covariance; Corr = correlation and E = expected value 1. Explain briefly three types of data and give an example for each = 2. If X {10, 15, 17, 22, 47, 36, 22} = And Y {2, 20, 25, 42, 33, 22, 25} Find a. Mean, Median and Mode for X and Y b. Var(x), Var(y), sd(x) and sd(y) c. Cov(x,y), corr (x,y) and Var(x+y) 3. Find a. E(10X) = b. E(5X+10-3Y) = c. Var(25X) = d. Var(2x+3)= e. Cov(2X+3, 4Y) = Notation: Var Variance; sd = standard deviation; cov = covariance; Corr = correlation and E = expected value 1. Explain briefly three types of data and give an example for each = 2. If X {10, 15, 17, 22, 47, 36, 22} = And Y {2, 20, 25, 42, 33, 22, 25} Find a. Mean, Median and Mode for X and Y b. Var(x), Var(y), sd(x) and sd(y) c. Cov(x,y), corr (x,y) and Var(x+y) 3. Find a. E(10X) = b. E(5X+10-3Y) = c. Var(25X) = d. Var(2x+3)= e. Cov(2X+3, 4Y) =
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