Mathematics, 10.12.2019 23:31 nagwaelbadawi

Let the joint pmf of x and y be defined by f(x, y)= x+y 32 , x=1,2, y=1,2,3,4. (a) find fx(x), the marginal pmf of x. (b) find fy(y), the marginal pmf of y. (c) find p(x > y). (d) find p(y =2x). (e) find p(x+y =3). (f) find p(x ≤3−y). (g) arex andy independentordependent? whyorwhy not? (h) find the means and the variances of x and y.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:30, deanlmartin

The soup shack usually makes tomato soup with 99 tomatoes for every 1212 cups of soup. today, they made 88 cups of soup with 66 tomatoes. how does today's soup compare to the usual recipe?

Answers: 2

continue

Mathematics, 21.06.2019 19:30, cutegirl0987

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Answers: 1

continue

Mathematics, 21.06.2019 21:00, samiiegarciia

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Answers: 2

continue

Mathematics, 21.06.2019 22:20, wrolle

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches, and a length of 3.2 inches?

Answers: 2

continue

You know the right answer?

Let the joint pmf of x and y be defined by f(x, y)= x+y 32 , x=1,2, y=1,2,3,4. (a) find fx(x), the m...