X | P(X=x) |
0 | 0.2 |
5 | 0.48 |
10 | 0.32 |
Y | P(Y=y) |
0 | 0.07 |
5 | 0.35 |
10 | 0.37 |
15 | 0.21 |
XY | P(XY=xy) |
0 | 0.25 |
25 | 0.14 |
50 | 0.35 |
75 | 0.10 |
100 | 0.15 |
150 | 0.01 |
An instructor has given a short quiz consisting of two parts. For a randomly selected student,...
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y - the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. plx, y) 0 5 10 15 0 0.02 0.06 0.02 0.10 X 5 0.04 0.15 0.20 0.10 10 0.01 0.15 0.14 0.01 (a) Compute the...
An Instructor has given a short quiz consisting of two parts. For a randomly selected student, let x = the number of points earned on the first part and the number of points earned on the second part Suppose that the joint pmf of X and Y is given in the accompanying table. p(x, y) 0 5 10 15 0 0.01 0.06 0.02 0.10 5 0.04 0.14 0.20 0.10 10 0.01 0.15 0.16 0.01 (a) Compute the covariance for X...
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. (a) Compute the covariance for X and Y. (Round your answer to two decimal places.) Cov(X, Y) = (b) Compute ρ for X and Y....
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. p(x, y) 0 5 10 15 0 0.01 0.06 0.02 0.10 X 5 0.04 0.17 0.20 0.10 10 0.01 0.15 0.13 0.01 (a) Compute the...
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. y p(x, y) 0 5 10 15 0 0.03 0.06 0.02 0.10 5 0.04 0.16 0.20 0.10 10 0.01 0.15 0.12 0.01 (a) Compute the...
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. p(x, y) I o 5 10 15 0 0.02 0.06 0.02 0.10 X 5 0 .04 0.16 0.20 0.10 100 .01 0.15 0.13 0.01 (a)...
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. y p(x, y) 0 5 10 15 x 0 0.01 0.06 0.02 0.10 5 0.04 0.14 0.20 0.10 10 0.01 0.15 0.16 0.01 (a)...
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. y p(x, y) 0 5 10 15 x 0 0.01 0.06 0.02 0.10 5 0.04 0.14 0.20 0.10 10 0.01 0.15 0.16 0.01 (a)...
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. y p(x,y) 0 5 10 15 0 0.03 0.06 0.02 0.10 х 5 0.04 0.13 0.20 0.10 10 0.01 0.15 0.15 0.01 (a) If the score recorded...
An instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the accompanying table. p(x, y) 0 у 0 5 10 0.03 0.06 0.02 0.04 0.13 0.20 0.01 0.15 0.15 15 0.10 Х 5 0.10 0.01 10 (a) If...