(Q10) Find the probability of getting a head when a coin is tossed once. Also find the probability of getting a tail.

Solution :

In the experiment of tossing a coin once, the number of possible outcomes is two - Head (H) and Tail (T). Let E be the event 'getting a head'. The number of outcomes favourable to E, (i.e., of getting a head) is 1.Therefore,

P(E) = P(Head) =
Number of outcomes favourable to E
Number of all possible outcomes
 =

Similarly, if F is the event 'getting a tail', then

P(F) = P(Tail) =