SOLUTION: Birthdays Three people are selected at random. Find the probability that (a) all three share the same birthday and (b) none of the three share the same birthday. Assume 365 days

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Question 328100: Birthdays Three people are selected at random. Find the probability that (a) all three share the same birthday and (b) none of the three share the same birthday. Assume 365 days a year.
Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!
Let P = probability

P(all three share the same birthday) = 3/365

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P(none of the threee share the sae birthday) = 1 - 3/365 or 362/365