Probability and coin

Probability refer to chance of occurrence of event or likelihood of an event or likelihood of an event.

Probability (p) = Number  of favourable event outcome÷Total number of outcome

Problem 1 : Toss a coin ,what is probability of getting tail?

Solution:

S={H,T}

E={T}        P(E)=Favourableoutcome/TotalSample

P(E)=1/2=0.5

* Probability of occurrence of an event and probability of not occurrence of event sum to one.

P(E)+P(E’)=1