WHYS.video

What Is the Probability of 5 Sundays in a Leap Year Month?

Discover the probability of a month having 5 Sundays during a leap year. Learn the calculation and key factors in this quick explanation.

Published

Video transcript

The probability of any month having 5 Sundays within a leap year is the same as in a regular year. Given 12 months and 7 days in a week, the probability for any month remains 1/7, or approximately 14.29%.

Questions and answers

  1. How often does a month have 5 Sundays?

    On average, the probability of a month having 5 Sundays is about 1 in 7, or approximately 14.29%, regardless of whether it's a leap year or not.

  2. Does a leap year affect the number of Sundays in a month?

    No, the leap year does not affect the probability of having 5 Sundays in a month, as this depends mainly on the number of days in the month and the day of the week the month starts.

  3. Why is the probability of 5 Sundays in any month 1/7?

    Because there are 7 days in a week, and the chance that a month starts on a day leading to 5 Sundays is equally likely among those days, making the probability 1/7.

Related questions

Continue exploring

If you found this explanation helpful, explore more videos on calendar probabilities and date-related calculations to deepen your understanding of how probabilities work over different time frames.