You can put this solution on YOUR website! what is the probability of your 13th birthday falling on friday the 13th
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The events are independent.
P(born on 13th of a month) = 12/365
P(born on a friday) = 1/7
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P(born on friday the 13) = (1/7)(12/365) = 12/2555 = 0.0047
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Cheers,
Stan H.
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