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Search the web to determine the estimated number of telephones in your state. If you know the number of households in your state, what conclusions can you reach about the number of telephones per household?

Search for "Pigeonhole Principle" on the web.

 

Search the web or look in an encyclopedia to find the average number of hairs on a human head. Considering this information, do you think there are at least two people with the same number of hairs on their heads in your town? What about when your local stadium is filled?

 

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