Wise geek Posted June 22, 2015 Share Posted June 22, 2015 There are 27 children in a class. Find the probability that: (a) Their birthdays are all different. (b) At least two children have the same birthday Please help me with this problem.. Quote Link to comment Share on other sites More sharing options...
akashDU Posted September 5, 2015 Share Posted September 5, 2015 Hard to solve in 1.5-2 mins 1) [ ( 365! / (365-27) ! ) ] / (365)^27 2) 1 - [ ( 365! / (365-27) ! ) ] / (365)^27 Quote Link to comment Share on other sites More sharing options...
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