Q2) If X&Y are two random variables with the following probability distribution 2 0.25 0.25 0.25 0.25 fod a) Calculate the covariance between X & Y b) Are X & Y independent, relate your answer to part (a) above e) Find the (1) E(XY=8) (2) E(YIX-2)

Q: Find uxv, vx, and vx V. U= i +j, v=j+K U × V

A: using cross product of vectors...

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A:

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A:

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A: Solution To find the interval we will use the t distribution.

Q: Hand written plz 2. Standardize the following LP model. - max z = −3x₁ + 8x₂ − x3 + 12x, - 3x₁ +8x₂…

A:

Q: 7. Find Lt V1+P

A: Introduction :

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A: Given that  Researchers were interested in the effects of maternal stress on infants production of…

Q: Q. 5 Given that A and B are independent with P(AUB) = 0.8 and P(B)= 0.3, find P(A).

A:

Q: Find uxv

A: To find the vector cross product

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A: The study is measured the total brain volume (TBV) (in mm3) of patients that had schizophrenia and…

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A: Here to find the value of x.

Q: [1 2 3] If Ax = b where A = 1 1 2, find x if Lo 1 2.

A: Using matrix notation a system of equations can be expressed in the form Ax=B. In this problem the…

Q: Solve Xa. 14 4. 7 -2 X1 5. -3 20 9 -6 X2 4 7 -1 20 9 18 X3 %3D 19 -8 -4 13 -2 X4 14 -1 13 -4 -4 X5…

A:

Q: 6C A study was conducted that measured the total brain volume (TBV) (in mm3) of patients that had…

A:

Q: If x, = 1, x1 = 2 ,x2 = 3 ,x3 = 4 ,x4 = 5, then L2(3) + L2(4) = %3D %3D %3D %3D Select one: а. 1 b.…

A:

Q: Find the least square line y = f(x) = Ax + B for the following data. Xk -2 -1 0 1 2 1 Ук 2 3 3 4 8

A:

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Q: 4.3.15 Generate i.i.d. X1, X2, ..., X, distributed N(-4, 3) with n large (take n = 10° if possible).…

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Q: [1 2 1 25 1 3 7 2 L4 9 3-1 1 Given A = - Find the rank. a. 1 с. 3 b. 2 d. 4

A:

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Q: Find Lt Vx (Vx+c- Vx)

A: We have to solve the following limits, limx→∞xx+c-x