Question: Suppose X and Y are two random variables with E[X] = 1, Var (X) = 4, E[Y ] = -1, Var (Y) = 4, and

Suppose X and Y are two random variables with E[X] = 1, Var (X) = 4, E[Y ] = -1, Var (Y) = 4, and Cov (X, Y) = 1. Find Var (X - Y). 0 4 0 6 0 8 O 2 O None of the aboveConsider a right tailed test with a = 0.15. What is the rejection region for this one-sided confidence bound at the 85% confidence level? O Z> 1.96 O Z > 1.036 O Z

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2. Give examples from your everyday life that understanding the context is crucial to how you act.

4. Give examples of how a communication situation can change from a win-lose to a winwin situation.

3. Why is the following statement, If the Church is a context, it is because it is inside our heads, correct?