Joint probability distribution

Reference no: EM1388647

A group of three students is to be randomly selected froma group of 1 freshman, 1 sophomore, 3 juniors and 3 seniors. Let Y1 and Y2 denote the number of juniors and seniors,

a) What is the joint probability distribution for Y1 and Y2?

b) Find the marginal distributions of Y1 andY2.

c) Are Y1 and Y2 independent? Why or why not?

Reference no: EM1388647

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