Harvard statistics 110, video 3 note(birthday problem)

9:10 2014-10-03 Friday
start Harvard statistics, video 3


birthday problem


9:10 2014-10-03
matching problem


20:06 2014-10-03
if k > 365, then the probability is 1


20:12 2014-10-03
pigenhole principle


20:26 2014-10-03
birthday match


20:28 2014-10-03
it's a little easier to work with the complement first,


so let's find the probability of no match


20:31 2014-10-03
so the probability of match is one minus that