crystallamar2449 crystallamar2449

05-05-2018
Mathematics

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If two people are selected at random, the probability that they do not have the same birthday (day and month) is startfraction 365 over 365 endfraction times startfraction 364 over 365 endfraction . explain why this is so. (ignore leap years and assume 365 days in a year.)

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Skøll1922 Skøll1922

05-05-2018

Because you have to times probability that the firs person is born on a day of the year (1/1,=365/365) by probability that the second one is born in another day (364/365).

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