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Assertion (A): The probability of a certain event E is 1.
Reason (R): The sum of probabilities of all elementary events of an experiment is 1.
Reason (R): The sum of probabilities of all elementary events of an experiment is 1.
- (a)Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- (b)Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
- (c)Assertion (A) is true, but Reason (R) is false.
- (d)Assertion (A) is false, but Reason (R) is true.
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Ans. (A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
Note: “The probability of a certain event E is 1” because certain event consists of all the elementary events and “The sum of probabilities of all elementary events of an experiment is 1".
Note: “The probability of a certain event E is 1” because certain event consists of all the elementary events and “The sum of probabilities of all elementary events of an experiment is 1".