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by harsh.champ » Wed Feb 17, 2010 5:51 am
Find the probability of birthday of a child is on a Saturday or Sunday(Assuming 365 days in a year)

A. 1/7
B. 2/7
C. 1/365
D. 2/365
E. None of the above.
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by ajith » Wed Feb 17, 2010 6:02 am
harsh.champ wrote:Find the probability of birthday of a child is on a Saturday or Sunday(Assuming 365 days in a year)

A. 1/7
B. 2/7
C. 1/365
D. 2/365
E. None of the above.
If we are not referring to years and consider it the probability is 2/7

But if we are asking about a specific year then we cannot determine because then we need to know how many saturdays and sundays were there in that year. (It can be 102/365 or 103/365)
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