Question

What is the probality of same date of birth and different date of birth

Answer 1

HeYa❣

The probability of being born any day of the year is 1 or more specifically: 365/365. Since Person B must be born on the same day as Person A their probability is 1/365. We want both of these events to happen so multiply the probabilities: The probability that any randomly chosen 2 people share the same birthdate.

Answer 2

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Probability of same birthday-:

The first person can have any birthday. That gives him 365 possible birthdays out of 365 days, so the probability of the first person having the "right" birthday is 365/365, or 100%. The chance that the second person has the same birthday is 1/365.