Which of the following is equal to Cov (X + Y, 2X – Y), where X and Y are random variables on a sample space S ? (a) 2Var (X) – Cou (X, Y) – Var (Y) (b) 2Var (X²) + Cou (X, Y) – Var (Y²) (c) 2Var (X) – Cov (X, Y) + Var (Y) (d) 2Var (X) + Cov (X, Y) – Var (Y) - (e) None of the above

Q: [3 5. Let A = and B = [, Find C = (AB)"

A: In the given matrix, A and matrix B  Apply matrix multiplication technique .

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A: HERE GIVEN, p(A) = 0.5 p(B) = 0.40 p(A ∪ B) = 0.70

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A: We have to check

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A: given  sin(x+y)=32sinx+12cosxwe know sin(x+y)=sinxcosy+cosxsiny

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A: The solution is given as

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A: We use the properties of matrices to find the values of x and y.

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A: Solution

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A: Introduction: The response variable is the examination scores, y, and the explanatory variable is…

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A: Given  A=50-3-2,  B=1-123,  C=0313

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A:

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A:

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A:

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A:

Q: -1 1 Then, |A|l1= 1 -2 Let A= Select one: a. 4 b. 2 C. 3 d. 1

A:

Q: Which of the following are true if X : Bin (6, .3)? A. E(X) = 6.3 B. E(X) = 1.8 C. E(X) = 5.7 D.…

A: Given that, X follows Binomial (6, 0.3)

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A: Given, A=1232,  B=2-1-34

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A:

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A: From the provided information, P (A) = 0.7, P (B) = 0.1

Q: and y= If a = 3, then x =

A: Solve using the properties of trigonometric rations

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A:

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A: Here convert the number (21)8, into base 2 number.

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A: Given Matrix

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A: q⇒p means "if q, then p"The converse of it will be " if p, then q"which has been symbollically…

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A:

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A: We use Venn diagram to solve the given question.

Q: A. Nine students held their breath, once after breathing normally and relaxing for one minute, and…

A: Solution:  X Y (X-X) (Y-Y) (X-X)(Y-Y) (X-X)2 (Y-Y)2 56 87 2.3333 8.8889 20.74047 5.444289…

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A:

Q: onditions, if any, must be set forth in order for a + b to be equal to n(A U B)?

A: In this question, the concept of Set Operations is applied. Set Operations The concept of set…

Q: Is there a better example of this... it's hard to follow

A: Let's solve.

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A:

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A: