Question

If we toss 3 coins, what is the probability that exactly 1 tail will appear?

Answer 1

2(1/3)

Answer 2

Here are all the ways to toss 3 coins

HHH
HHT
HTH
HTT
THH
THT
TTH
TTT

Of these 8 total ways, there are only 3 ways to get exactly one tail. These ways are: HHT, HTH and THH


So the probability is 3/8