Question
Sun February 26, 2012 By:
 

find the probability that the month February may have 5 wednesdays in 1) leap year 2) non leap year.

Expert Reply
Mon February 27, 2012
In leap year, number of days in feb. = 29
feb has 4 weeks and 1 day, this one can be any of the day, therefore
P(5 wednesday) = 1/7
In non-leap year,
number of days = 28, that is 4 complete week.
P(5 wednesday) = 0
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