The fraction of X of male runners and the fraction Y of female runners who compete in marathon races is described by the joint density function 8xy, 0< x < 1,0 < y < x 0, f(x, y) = elsewhere. Find the covariance of X and Y. Round final answer to 4 decimal places.

Q: Solve  8(p-6) = 6(p-5)

A:

Q: What is the answer to: 0.6(4-2x)=20.5-(3x+10) ?

A: we are given that  0.6( 4-2x)=20.5-(3x+10) we first multiply these elements as follows, 0.6×(4)…

Q: Simplify

A: we have to simplify,  -y3/2y-1/33

Q: A+b+c=180 (For c)

A: Given, A+b+c = 180 To be solved for c

Q: how do I get r - 1 = 3?

A: Given: fx=xex2+1 The iterative sequence for the root of this equation using Newton's method is…

Q: Solve ,  15(p-6) = 15(p+5)

A: Given: 15(p−6)=15(p+5)

Q: v-7s=9, what's exactly the meaning of what comes after that?

A: As already found in the given answer s = 0Now,

Q: 4/3 (-8)

A:

Q: Write a real world problem for the expression 3/4 divided by 1/8.  Include a tape diagram and the…

A: Word problem: I have 3/4 kg cheese and one slice is made from 1/8 kg of one kg cheese, how many…

Q: Simplify: a/c +2/5-1/c

A: Given, ac+25-1c To simplify the given expression.

Q: 6--3(x+2)

A: 6=-3x+2

Q: The first image goes with the second image, so the second image is which is what I am looking for…

A: Here, the random variable x is the height of a certain species of tree. It is given that x~…

Q: Find the value of x. 49⁰ (3x + 5)

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Q: Can you help me with the same equation but p * q * r = 19(p + q + r)

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Q: How do you solve this with each rule?

A:

Q: how did you find the solutions ?ex (-4/3 , -4/3 , -4/3)?

A: We have to find the solutions of the given system.

Q: hmm how did you find out the b= 50 and a =200?

A:

Q: 3(×+8)=36

A:

Q: how did you get 1.5x + 1.5y = 37.5?

A: We need to explain the reasoning behind the equation:1.5x+1.5y=37.5

Q: What’s 3 + 3 =

A: Given expression 3+3