Question

The probability of a certain event is
(a)0
(b)1
(c)$\frac{1}{2}$
(d)no existent

Answer 1

the probablity of a certain event is 1

Answer 2

SOLUTION :  

The correct option is (b) : 1

The probability of certain event is one (1) .

EVENT : An  event for an experiment is the collection of some outcomes of  the experiment .  

CERTAIN EVENT :  

An event which is sure to occur , is called a sure event or certain event. The probability of sure event is always one .

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