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alejandra1201
24.06.2019 •
Mathematics
Consider the function given by the graph what are these values? f(-2) =fo) =f(4) =
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Ответ:
Step-by-step explanation:
Given that two random variables X and Y are independent. Each has a binomial distribution with success probability 0.4 and 2 trials.
When x and y are independent joint probability would be product of individual probabilities
pdf of X
X is Binom (2,0.4)
and Y is Binomi (2,0.4)
Hence joint distribution of XY would be
P(X=x, Y=y) =![2Cx (0.4)^x (0.6)^{2-x} *2Cy (0.4)^y (0.6)^{2-y}](/tpl/images/0470/1493/3d6a7.png)
for x=0,1,2 and y =0,1,2
b) Joint probability using table
PDF of X is
X 0 1 2
p 0.36 0.48 0.16
and same for Y also
Joint prob would be
X Y 0 1 2
0 0.1296 0.1728 0.0576
1 0.1728 0.2304 0.0768
2 0.0576 0.0768 0.0256