In a group of 30 students randomly gathered in a classroom, what is the probability that no

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In a group of 30 students randomly gathered in a classroom, what is the probability that no two of those students will have the same birthday; that is, what is the probability that there will be no duplication of the same date of birth, ignoring the year and attending only to the month and the day of the month? How many students would need to be in the group in order for the probability of such a duplication to be approximately .5?

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Introduction To Logic

ISBN: 9781138500860

15th Edition

Authors: Irving M. Copi, Carl Cohen, Victor Rodych

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