ClassesClass 9MathsNCERTIntroduction to ProbabilityEnd of Chapter ExercisesQ 1
QUESTION 1 Easy

Fill in the blanks.
(i) The probability of an impossible event is ______.
(ii) The set of all possible outcomes of a random experiment is called the ______.
(iii) The probability of an event that is certain to happen is ______.
(iv) Tossing a fair coin has a probability of ______ for getting heads.

SOLUTION

(i) The probability of an impossible event is \(\underline{\,\,\,0\,\,\,}\).
(ii) The set of all possible outcomes of a random experiment is called the \(\underline{\,sample\, space\,}\).
(iii) The probability of an event that is certain to happen is \(\underline{\,\,\,1\,\,\,}\).
(iv) Tossing a fair coin has a probability of \(\underline{\,\,\,0.5\,\,\,}\) for getting heads.
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Final Answer : (i) 0
(ii) Sample space
(iii) 1
(iv) 0.5