Question

Here is the sample space for three tosses of a coin:

{HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}



Calculate the probability that this compound event will yield a result of 1 head and 2 tails (in any order).

Answer 1

Of the given sample space, count the events that qualify. They are HTT, THT and TTH. That's 3 out of 8, the probability is therefore 3/8 = 0.375