A die is rolled twice. Let X equal the sum of the outcomes, and let Y equal the first outcome minus the second. Compute Cov(X, Y).

Cov(X, Y) = 0

Step-by-step explanation:

X = Sum of the outcomes

Y = Difference between the outcomes (first - second)

Let the two outcomes of the die be A and B

X = A + B

Y = A - B

Cov(X, Y) = Cov( A+B, A-B)

Cov(X, Y) = Cov(A,A) - Cov(A,B) + Cov(B,A) - Cov(B,B)

Cov(X,Y) = Cov(A, A) - Cov(B, B)

Cov(X, Y) = Var(A) - Var(B)

A and B are identically distributed, Var(A) = Var(B)

This means that: Cov(X, Y) = 0

answer

106 emergencies

step-by-step explanation:

steve should create a type of business report called a business plan. the correct option among the options that are already given in the question is the last or the fourth option. this business report created by steve will actually influence the investors about investing their money in steve's business. this business report will have all the details about the business, the amount of investment required and the amount of expected profit.