Question

You toss 2 coins.Find P(at least 1 tail is tossed)

Answer 1

The sample space is
{HH, HT,TH,TT}
Three out of the possible four outcomes have a tail. Can you see the required probability now?

Answer 2

Yes, this is correct. There are four possible outcomes as above, only one of which does not include a tail.

Answer 3

So 1?

Answer 4

Or 3?

Answer 5

It would be 3/4 where a tail is tossed, so 0.75. :)

Answer 6

Ok.