Question

Two friends peter and paul are invited to attend conference.the probability of paul

Answer 1

There will be two possiblities.

If Paul goes to party this is one action

If he does not go to party is another action

Peter and Paul both are independent.Hence presence and absence  of Peter will not affect the probability.

So, going to party is one action

And total action is 2

Hence,probability is, one action/ total action

      Hence, 0.5 will be the answer.