suppose you repeatedly shake 3 coins in your hand and drop t

suppose you repeatedly shake 3 coins in your hand and drop them on a table. what the is probability of obtaining 2 heads and one tail?

Solution

for tossing 3 coins the sample space will be {HHH,HHT,HTH,HTT,THH,THT,TTH,TTT}

according to the sample space 2 heads and one tail there are 3 events

so the probability of having 2 heads and 1 tail = 3/8 = 0.375