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CBSE Class 10 Answered

What is the probability that a non leap year selected at random has 53 Sundays?
Asked by rathodshaina18 | 04 Mar, 2019, 08:18: PM
answered-by-expert Expert Answer
Leap year has 365 days. A leap year has full 52 weeks and one extra day. These extra day can be any day from sunday to saturday
 
Sample space for extra day = { sunday, monday, tuesday, wednesday, thursday, friday, saturday }
 
probability of having the extra day as sunday = 1/7
 
Hence probability of having 53 sundays for a randomly selected leap year is 1/7
Answered by Thiyagarajan K | 04 Mar, 2019, 10:26: PM

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