LTI Launch x MindTap - Cengage Learning X G amendment - Google Search X + ng.cengage.com/staticb/ui/evo/index.html? deploymentld=59965222022380235386256775&elSBN=9780357131596&id=1715664147&snapshotld=3336166& Update : Hugo CENGAGE | MINDTAP Q Search this course ? 5.3 Practice X My Home Assignment: 5.3 Practice Assignment Score: 50.00% Courses Save Submit Assignment for Grading Catalog and Study Tools Questions Exercise 05.16 (Expected Value and Variance) Question 1 of 2 A - Z Rental Options 1 . Hint(s) Check My Work College Success Tips 2 . The following table provides a probability distribution for the random variable y. Career Success Tips f(y) RECOMMENDED FOR YOU 0.20 ANC 0.30 0.40 0.10 a. Compute E(y) (to 1 decimal). Preparing for a Test 5.2 b. Compute Var(y) and o (to 2 decimals). Help Var(y) 4.56 Give Feedback X At Hide Feedback Partially Correct Hint(s) Check My Work O- Icon Key Exercise 05.16 (Expected Value and Variance) Question 1 of 2 Save Submit Assignment for GradingLTI Launch x MindTap - Cengage Learning X G amendment - Google Search X + ng.cengage.com/staticb/ui/evo/index.html?deploymentld=59965222022380235386256775&elSBN=9780357131596&id=1715664147&snapshotld=3336166& Update : Hugo CENGAGE | MINDTAP Q Search this course ? X My Home 5.3 Practice Assignment: 5.3 Practice Assignment Score: 50.00% Courses Save Submit Assignment for Grading Catalog and Study Tools Questions Exercise 05.16 Algo (Expected Value and Variance) Question 2 of 2 A-Z Rental Options Hint(s) Check My Work College Success Tips 2 . The following table provides a probability distribution for the random variable y. Career Success Tips f(y) RECOMMENDED FOR YOU 0.20 a A W 0.30 0.40 0.10 1 2 a. Compute E(y) (to 1 decimal). Preparing for a Test 5.1 b. Compute Var(y) and o (to 2 decimals). Help Var(y) & Give Feedback At Hide Feedback Partially Correct Hint(s) Check My Work O- Icon Key Exercise 05.16 Algo (Expected Value and Variance) Question 2 of 2 Save Submit Assignment for GradingLTI Launch x MindTap - Cengage Learning X G amendment - Google Search X + ng.cengage.com/staticb/ui/evo/index.html? deploymentld=59965222022380235386256775&elSBN=9780357131596&snapshotid=3336166&id=1715664152& Update : Hugo CENGAGE | MINDTAP Q Search this course ? 5.4 Practice X My Home Question 1 of 2 Courses Questions Exercise 05.25 (Bivariate Distributions, Covariance, and Financial Portfolio) 1 . Hint(s) Check My Work Catalog and Study Tools 2 . Rental Options Given below is a bivariate distribution for the random variables a and y. f(z, y) College Success Tips 50 0.5 50 Career Success Tips 30 0.3 RECOMMENDED FOR YOU a. Compute the expected value and the variance for a and y. NJ E(x) = E(y) = Var(a) = Preparing for a Test Var(y) = b. Develop a probability distribution for a + y (to 2 decimals). Help f(x + y) Give Feedback 130 80 100 c. Using the result of part (b), compute E(x + y) and Var(x + y) . E(x + y) = Var(x + y) = d. Compute the covariance and correlation for a and y. If required, round your answers to two decimal places. Covariance = Correlation = The random variables a and y are |positively related e. The variance of the sum of a and y is bigger than the sum of the individual variances. By how much? Var(x+y) is greater than Var(x) + Var(y) by twice the covariance Hide Feedback Partially Correct Hint(s) Check My WorkLTI Launch x MindTap - Cengage Learning X G amendment - Google Search x + ng.cengage.com/staticb/ui/evo/index.html?deploymentld=59965222022380235386256775&elSBN=9780357131596&snapshotld=3336166&id=1715664152& Update : CENGAGE | MINDTAP Q Search this course ? Hugo X 5.4 Practice My Home Save Submit Assignment for Grading Courses Questions Exercise 05.25 Algo (Bivariate Distributions, Covariance, and Financial Portfolio) Question 2 of 2 Catalog and Study Tools Hint(s) Check My Work A-Z Rental Options 2 . Given below is a bivariate distribution for the random variables a and y. 1 om College Success Tips f(x, y) a 0.2 90 80 Career Success Tips 0.5 20 30 RECOMMENDED FOR YOU NJ 0.3 a. Compute the expected value and the variance for x and y. E(x) = E(y) = Preparing for a Test Var(x) = Var(y) = Help b. Develop a probability distribution for a + y (to 2 decimals). Give Feedback cty f(x + y) 170 50 110 c. Using the result of part (b), compute E(x + y) and Var(x + y) . E(x + y) = Var(x + y) = d. Compute the covariance and correlation for a and y. If required, round your answers to two decimal places. Covariance = Correlation= The random variables x and y are |positively related e. The variance of the sum of x and y is bigger than the sum of the individual variances. By how much? Var(x+y) is greater than Var(x) + Var(y) by twice the covariance Hide Feedback Partially Correct Hint(s) Check My Work