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4. For each of the following sets of variables, classify them as independent or dependent. Justify your answer (a) The random variables X,Y with joint p.m.f 1/10 ifx=1, y = 1, 1 1/10 4/10 2 4/10 1/10 1/10 ifx-2, y = 2, 0 otherwise, 1/10 ifx=1,y=1, 1/10 if x=1,y=2, x= 214/104/10 /10 if -2,y-2, 0 otherwise, (b) Consider a sequence of 10 Bernoulli trials with success probability 1/4: i. The number X of successes in trials 1 to 4; the number Y of successes in trials 5 and 6; and the number Z of successes in trials 7 to 10 ii. The number X of successes in trials 1 to 4 and the umber W of successes in all 10 12 marks trials.

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Answer #1

please tell what the question is about part b. The question is not clear about part b.

part a is given below:

10.00 12.00 2.00 2 /o 7.00 8.00 0 te

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