1.

Find the probability that a leap year has 53 fridays

Answer»

LEAP year has 52 complete weeks PLUS 2 days. Hence if the leap yearbegins on a Sunday, it will have 53Sundays and Mondays and 52 other days of the week. THUS a leap year willhave 53 Fridays if the year begins on a Thursday or Friday. The probability that a leap year begins on any day of the year is the same = 1/7.



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