SOLUTION: In a group of 30 people, what is the probability that at least 2 people will have the same birthday? Round answer to 2 decimal places.
a)0.07
b)0.29
c)0.71
d)0.93
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-> SOLUTION: In a group of 30 people, what is the probability that at least 2 people will have the same birthday? Round answer to 2 decimal places.
a)0.07
b)0.29
c)0.71
d)0.93
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Question 24766: In a group of 30 people, what is the probability that at least 2 people will have the same birthday? Round answer to 2 decimal places.
a)0.07
b)0.29
c)0.71
d)0.93 Found 2 solutions by Paul, JWG:Answer by Paul(988) (Show Source):
You can put this solution on YOUR website! Calculate the percentage you will not find a group of two people in a larger group of 30 that share the same birthday:
(365!/(365-30)!)/365^30 = 29%
100%-29% = 71%
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