Question

in a group of 8 students what is the probability of each one of them having birthday on the different day of a week????

Answer 1

the formula of probability is
P.B=favourable outcome /total outcome
so probability of this Q is 7/8
I think it is right
or it is wrong so sorry

Answer 2

Probability is zero.

As there are 8 students and only seven days of week, there is no probability that each of them having birthday on the different day of a week.