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Anastasy [175]
3 years ago
12

Given below is a bivariate distribution for the random variables x and y. f(x, y) x y 0.2 50 80 0.3 30 50 0.5 40 60 (a) Compute

the expected value and the variance for x and y. E(x)

Mathematics
1 answer:
ch4aika [34]3 years ago
4 0

Complete data:

f(x,y) x Y

0.2 50 80

0.3 30 50

0.5 40 60

Answer:

Expected values for x and Y

E(x) = 39, E(Y) = 61

Variance for x and Y

E(x^2) = 1570

E(Y^2) =3830

Step-by-step explanation:

The detailed explanations are contained in the file attached

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Answer:

Explained below.

Step-by-step explanation:

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\text{Sum of n terms}=\frac{n(n+1)}{2}

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Can anyone help ?
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Answer:

a) 1 / 12

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Step-by-step explanation:

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When flipping a coin, there are two ways it can land: heads or tails. And there is one outcome with heads. The probability of getting head would be 1 / 2.

To find the the total, you multiply the probabilities of the two events: 1 / 6 * 1 / 2 = 1 / 12

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