A fair coin is tossed 3 times. The probability of throwing 3 tails = 0.125, two tails = 0.375 and 1 tails = 0.375. What is the probability of throwing 1 head?

1 Answer
May 10, 2018

0.375

Explanation:

You could throw

HTT =1/2 xx 1/2 xx 1/2=1/8=12×12×12=18

THT =1/2 xx 1/2 xx 1/2=1/8=12×12×12=18

TTH =1/2 xx 1/2 xx 1/2=1/8=12×12×12=18

1/8 + 1/8 + 1/8 = 3/8 or 0.37518+18+18=38or0.375