Respuesta :

ach031
1 2 3 4 5 6

Tail 1+T 2+T 3+T 4+T 5+T 6+T

Heads 1+H 2+H 3+H 4+H 5+H 6+H

So as you can see from about there are 12 different outcomes
There are 6 chances in getting a tails bit only 4 are less that 5 so you answer is 4/12
(You don't simplify probability)