SOLUTION: Suppose two vaccum salesmen
A and B must each make two calls per day, one in the morning and one in the afternoon. A has a probability 0.4 of selling a cleaner on any call, while
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-> SOLUTION: Suppose two vaccum salesmen
A and B must each make two calls per day, one in the morning and one in the afternoon. A has a probability 0.4 of selling a cleaner on any call, while
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Question 1143881: Suppose two vaccum salesmen
A and B must each make two calls per day, one in the morning and one in the afternoon. A has a probability 0.4 of selling a cleaner on any call, while B(a novice) has a probability 0.1 of a sale. A works independently of B, and for each salesman, morning and afternoon results are independent of eachother. Find the probability that
A. A sells just one cleaner
B. B makes at least one sell Found 2 solutions by ikleyn, Alan3354:Answer by ikleyn(52896) (Show Source):
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Suppose two vaccum salesmen A and B must each make two calls per day, one in the morning and one in the afternoon.
A has a probability 0.4 of selling a cleaner on any call, while B(a novice) has a probability 0.1 of a sale.
A works independently of B, and for each salesman, morning and afternoon results are independent of eachother.
Find the probability that
A. A sells exactly one cleaner during the day.
B. B makes at least one sell during the day
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Please pay attention on how I edited your post to make it clean and clear.
(A) P = P(sells at least one during the day) - P(sells two during the day) = (0.4 + 0.4 - 0.4*0.4) - 0.4*0.4 = 0.64 - 0.16 = 0.48.
(B) P = complement to two unsuccessful calls = 1 - 0.9*0.9 = 0.19.
