SOLUTION: what is the probability that the thirteenth of the month falls on a friday?
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Question 486418: what is the probability that the thirteenth of the month falls on a friday?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
The first day of each month is roughly distributed evenly (Sunday through Saturday) so the probability that the thirteenth of the month falls on a Friday is 1/7.
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