(The Birthday Problem) It is known that there are as many as n people in a...
(The Birthday Problem) It is known that there are as
many as n people in a room
a. How big is the chance that no one has the same birthday?
b. What is the value of n so that the probability of problem (a) is
less than 50%?
Homework Answers
a)P( no one has the same birthday )=P(all n people have different birthdays)=P(selecting n days from 365)
=(365*364*363*.....(365-n+1)/365n
b) P( no one has the same birthday )=(365*364*363*.....(365-n+1)/365n <0.50
solving above by putting values , n=23
Add Answer to:
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