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Probability - birthday

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What is the probability that at least 2 of the 435 members of the House of Representatives have the same birthday?

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Solution Summary

This shows how to use the pigeonhole theorem of probability.

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The probability is 1. The answer lies in the pigeonhole theorem.
Even with a leap year, you have more "pigeons" (members) than "holes" ...

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    The probability that a newborn male will reach the age of 50
    =1-(probability that a new born male will die by the 50th birthday)
    =1-0.11457 = 0.88543

    (b).

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