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Probability — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsProbability1 Mark
Question
The probability of an event that is sure to happen, is _________.
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Answer

The probability of an event that is sure to happen, is 1.
Solution:
The event that is sure to happen is called a certain event and probability of such an event is 1 as this event is bound to happen.

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