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Probability in college algebra
I need help with this problem...
A sale representative makes a sale at approximately one-third of the offices she calls on. If, on a given day, she goes to four offices, what are the probabilities that she will make a sale at (a) all four offices? (b) none of the offices, and (c) at least one office? |
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I'll help you with the first problem. If the probability of success on any one office visit is 1/3, then the probability of being successful 4 times in a row is (1/3)*(1/3*(1/3)*(1/3).
As for the second, recall that the probability of not being successful on any patricular office visit is 1 - P(success) = 1 - 1/3. |
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