Question

probability of sundays in leap year​

Answer 1

For a leap year to have 53 Sunday , it should start from Saturday or Sunday .

So basically what we have to find is:-

Probability that year start from Saturday or Sunday (P).

P= (first day to be Saturday or Sunday)/(total days in week)

P = 2/7✔️✔️

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Answer 2

A leap year has 366 days.

364 days means 52 weeks.

the remaining 2 days can be -

Sunday-Monday ; Monday-Tuesday ; Tuesday-Wednesday ; Wednesday-Thursday ; Thursday-Friday ; Friday-Saturday ; Saturday-Sunday.

Total Number Of Outcomes = 7

Number of favourable outcomes = 2

P(E) = Number of favourable outcomes

Number of total outcomes

= 2

7