There are 17 people in your class. What is the probability that two of you share...

Question

Question

There are 17 people in your class. What is the probability that two of you share the same birthday?

Answer 1

Answer #1

probability that two of you share the same birthday =1-P(none of 17 share the same birthdays)

=1-(365*364*363*...*(365-17+1))/365¹⁷ =1-0.6850 =0.3150

Answer 2

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