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In each of the experiments, write the ev...

In each of the experiments, write the events using set notation and mention the total number of elements in each of them. Find the probability of each event :
A die is rolled. (i) A is the event of getting a number less than 4,(ii) B is the event of getting a prime number.

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The correct Answer is:
`S={1,2,3,4,5,6}," "thereforen(S)=6.`
(i) `A={1,2,3};n(A)=3; P(A)=1/2.`
(ii) `B={2,3,5};n(B)=3;P(B)=1/2.`
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