Please explain into details. Thank you!    A box has 1 red and 3 blue marbles. Two marble are selected at random (together, without replacement). Let R be the number of reds we get. Let B be the number of blues we get. Compute Cov(R, B).

Q: If u= (2, 1) and v= (4, –16), find 4u+ v. 4 Select the correct answer below: O (9,0) O (6. –15) О…

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Q: Suppose Cov(X,Y) = 231. What is Cov(8.6X, 3.4Y)?

A: The objective of this question is to find the covariance of the two variables 8.6X and 3.4Y given…

Q: let v = (1, 3, −2) and w = (2, −1, 4). Compute v × w.

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Q: The next five births at a hospital all being boys

A: Let P(G) be the probability of birth of a girl and P(B) be the probability of birth of a boy. The…

Q: Given u = (-3, 4) and v (6,5), =

A: Given query is to perform indicated vector operation.

Q: sinz = 0 iff %3D Select one: O z= kt. Oz=-+2kn. TO O z = + kt. 3T + kT. 2

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Q: There are 30 sutdents in a class. Of the class 2/6 of the students bring have 1pet 1/6 of the…

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Q: Suppose u=⟨−4,4,−2⟩ and v=⟨4,−2,3⟩. Then u×v=   v×u=

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Q: Let ū = (2,3) and i = (5, 2). Find ū . Select the correct answer below: O (-3, 1) O (7, 5) O (3, –1)…

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Q: Let ū = (3, – 4, – 10) and i = (– 7, – 2, 0). – 2,0). - - 2u + 20

A: Given:-u→=<3, -4, -10> andv→=<-7, -2,  0>

Q: V. Let u¯= (-7, –2) and v= (-7, -1). Find u Select the correct answer below: O (0, 1) O (14,3) O (0,…

A: Given u→=-7, -2 and v→=-7, -1

Q: Given v→ = and u→ = , find v→ + u→. v→ + u→ =

A: Given:     v  = ⟨ 10 , 2 ⟩      u = ⟨ -5 , 8 ⟩     v + u = ?

Q: 7) A bag contains 10 marbles: 6 red, 3 blue, and 1 green. One marble is selected at random. 7). Find…

A: Explanation of the answer is as follows

Q: If ~v = 〈 4, 1, 6〉 and ~w = 〈3, 2, 3〉, find ~v · ~w and ~v × ~w.

A: If ~v = 〈 4, 1, 6〉 and ~w = 〈3, 2, 3〉, find ~v · ~w and ~v × ~w.

Q: 0 5. 21 ) Let A=[¹²] and B= [¹ Find AB. 13

A: Given query is to find Matrix product.

Q: 2. Find x if m24 2x+3 and m381. 56 8 7 a 42 b. 39 c. 24 d. 21

A: solution:-