Answer:
The probability of getting heads on the toss of a coin is 0.5.
Step-by-step explanation:
Let H denote the event that head appears.
Let T denote the event that tail appears.
Let C denote the event that the coin is tossed.
Then C=H∪T and the events H and T are mutually exclusive. Moreover it is for certain that event C occurs and this together leads to:
P(H)+P(T)=P(C)=1
If the coin is fair then also:
P(H)=P(T) so that we can conclude that:
P(H)=P(T)= 1/2 or 0.5.
