to use telephone banking to pay bills, the coutomer has to eneter the last three digits of each bill. the numbers 0 to 9 can be used.

a. What is the probability that a person has two bill to register with the same last three digits?

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- May 27th 2005, 02:32 PMkelseyprobability
to use telephone banking to pay bills, the coutomer has to eneter the last three digits of each bill. the numbers 0 to 9 can be used.

a. What is the probability that a person has two bill to register with the same last three digits? - May 27th 2005, 02:44 PMMath Helpprobability of a three digit numberQuote:

Originally Posted by**kelsey**

there are 10 possible digits for each of the 3 places so the probability is $\displaystyle \frac {1}{10*10*10}$ or $\displaystyle \frac {1}{1000}$