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CBSE Class 9 Answered

What is the probability of getting 53 sundays in a leap year.
Asked by kamendrakumar79 | 25 Feb, 2016, 09:54: PM
answered-by-expert Expert Answer
In space straight a space normal space year space there space are space 364 space days space means space 52 space weeks. So space inall space there space are space 52 space sundays space in space straight a space year. In space straight a space week space there space are space 7 space days. straight n left parenthesis straight s right parenthesis space equals space 7 Let space straight A space be space the space event space that space it space is space sunday. There space is space only space one space sunday space in space straight a space week. straight n left parenthesis straight A right parenthesis space equals space 1 straight P left parenthesis straight A right parenthesis space equals space fraction numerator straight n left parenthesis straight A right parenthesis over denominator straight n left parenthesis straight s right parenthesis end fraction equals 1 over 7
Answered by Vijaykumar Wani | 26 Feb, 2016, 10:52: AM

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CBSE 9 - Maths
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