Suppose Cov(X,Y) = 781. What is Cov(4.5X, 7.5Y)?

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: Suppose that Var(X) = 742.23, Var(Y) = 8890.5, and Cov(X,Y) = 2191.72. What is Var(.51X + .49Y)?

A: The objective of the question is to find the variance of the linear combination of two random…

Q: Compote clerivative bao fx)= cot(x), x=0.8 flx)=cot(x, %3D fl0.8) =

A: We use basic inverse trigonometric identity.

Q: fesch² (1- csch² (1+ 3x) dx

A: Hyperbolic function need to be integrated.

Q: a dx Evaluate (4a² +9x*)

A: This question is based on Indefinite Integration.

Q: that Var(X) = 727.48, Var(X) = 9536.23, and Cov(

A: Given,           Var(X) = 727.48, Var(Y) = 9536.23, and Cov(X, Y) = 2236.37 To the value of…

Q: Find u•v

A: As   u = -12,2         v = 1,6   So,  u→=-12 i+2 j        v→= i+6 j

Q: 2X + 2 ) dx 3. 2X 6 + 2e

A:

Q: 3. (10 points) Evaluate 1²++)dx

A: ```markdown3 . (10 points) Evaluate ∫12​(1/x2+1/x3)dx To solve  integral , we can split it into two…

Q: its saying that D is wrong and so is fxi

A: Right endpoint method: The area under the curve f(x) on the interval [a, b], withn rectangles is…

Q: Isd (m, n) = 1 and p|m then gcd (n, p) = 1

A: In this question, we have to check the given statement is true or false with reason.

Q: (1,2) D (1.1) x+3y=7 (4.1)

A: Step 1: the distance between two points is d2=√((x2-x1)2+(y2-y1)2) Step 2: find the distance of all…

Q: Find x³ n* d

A: Integration by Parts: The rule of integration by parts is used to integrate the product of two…

Q: 24 dx (144x²+1) Evaluate S- 2

A: Here we have to find the integral.

Q: d(a, C) := ínf d(a, x)

A:

Q: 7. (r +1)( + 4)

A: As per Bartley guidelines we are supposed to answer only one question per post. This post contains…