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
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