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A computer salesperson knows from his pa...

A computer salesperson knows from his past experience that he sells computers to one in every twenty customers who enter the showroom. What is the probability that he will sell a computer to exactly two of the next three customers?

A

`(57)/(20^(3))`

B

`(57)/(20^(2))`

C

`(19)/(20^(3))`

D

`(57)/(20)`

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The correct Answer is:
a
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PREMIERS PUBLISHERS-PROBABILITY DISTRIBUTIONS-EXERCISE 11.6
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