probability of the events that are certain to happen is

Probability of Certain event is 1
Your answer is 1

The probability of an event is a number describing the chance that the event will happen. An event that is certain to happen has a probability of 1. An event that cannot possibly happen has a probability of zero. If there is a chance that an event will happen, then its probability is between zero and 1.

Dear student
Here is your answer
probability?of an?event?is a number describing the?chance?that the?event?will?happen. An?event?that is?certain to happen?has a?probability?of 1. An?event?that cannot possibly?happen?has a?probability?of zero. If there is a?chance?that an?event?will?happen, then its?probability?is between zero and 1.
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Dear student ,
Probability of Certain event is 1
Your answer is 1

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The probability of an event?E?is defined as the number of outcomes favourable to?E?divided by the total number of equally likely outcomes in the sample space?S?of the experiment.