Purchases a tube of toothpaste

Reference no: EM131829852

Each time that a shopper purchases a tube of toothpaste, he chooses either brand A or brand B. Suppose that the probability is 1/3 that he will choose the same brand chosen on his previous purchase, and the probability is 2/3 that he will switch brands.

(a) If his first purchase is brand A, what is the probability that his fifth purchase wil1 be brand B₁ :+

(b) If his first purchase is brand B, what is the probability that his fifth purchase will be brand B?

Reference no: EM131829852

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