Question: Consider the multinomialdistribution(2.14)with c = 3 categories. (a) Explainwhythemarginaldistributionof Y1 is binomial.Basedonthis,report E(Y1) and var(Y1). (b) Are Y1 and Y2 independentrandomvariables?Whyorwhynot?

Consider the multinomialdistribution(2.14)with c = 3 categories.

(a) Explainwhythemarginaldistributionof Y1 is binomial.Basedonthis,report E(Y1) and var(Y1).

(b) Are Y1 and Y2 independentrandomvariables?Whyorwhynot?

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