Question

A and B are two friends. Find the probability that both have same birthday and both have different birthday​

Answer 1

Answer:

same birthday

if we're talking about an ordinary year the probability is 1/365 and if it's a leap year the probability is 1/366

different birthday

for ordinary year 364/365

for leap year 365/366

Step-by-step explanation:

a person cannot have more than one birthday in a year so it's obvious if two people are having same birthday then it's going to be 1 day in the year and if they're having different birthday it could be any day except for 1

OR

for different birthday

probability = 1- probability of same birthday

= 1- 1/365

=364/365