Two coins are tossed simultaneously. What is the probability of getting at most one head?
Total numbers of elementary events are: 2 x 2 = 4
Let E be the event of getting at most one head
Note: atmost one head means one head or no head at all, outcomes are considerable
Favourable events are: TT, HT, TH
Numbers of favourable outcomes = 3
P (E) = 3/4