what is the probability that you will not win the game one a

what is the probability that you will not win the game (one attempt)?

Solution

Probability of winning the game is 1/2

Consider a coin is tossed 3 times

For given question= p(x=2)+p(x=3)

Chances of getting 2 heads when tossed 3 times is 3C2=3

Chances of getting 3 heads when tossed 3 times is 3C3=1

Total chances are 2*2*2=8

Required probability is (3+1)/8=1/2