In the past 6 days, carmela’s travel time to work has varied: 34 minutes, 20 minutes, 27 minutes, 21 minutes, 29 minutes, and 19 minutes. the work shown is her calculation of the mean absolute deviation of the time traveled. which step contains the first error carmela made?

The discrete random variables x and y take integer values with joint probability distribution given by f (x, y) = a(y−x+1) 0 ≤ x ≤ y ≤ 2 or =0 otherwise, where a is a constant. 1 tabulate the distribution and show that a = 0.1.2 find the marginal distributions of x and y. 3 calculate cov(x, y).4 state, giving a reason, whether x and y are independent. 5 calculate e(y|x = 1).