The probability of being born on February 28 depends on several factors, including whether it’s a leap year and the overall distribution of births throughout the year.
In a typical year, there are 365 days. Therefore, the probability of being born on any specific day, including February 28, is:
Probability = Number of favorable outcomes / Total number of outcomes
Here, the number of favorable outcomes (being born on February 28) is 1, and the total number of outcomes (the days in a year) is 365. So:
Probability = 1 / 365 ≈ 0.00274 or about 0.274%.
However, in leap years, there is an extra day in February (February 29). In those years, the probability of being born on February 28 would still be 1 out of 366 days, which is:
Probability = 1 / 366 ≈ 0.00273 or about 0.273%.
When considering the average probability across all years (taking into account both regular and leap years), it averages out to be slightly more than 0.274%. In summary, while the exact likelihood can fluctuate based on yearly conditions, the probabilities for each case remain fairly close to 0.273% and 0.274% for leap and non-leap years, respectively.