A fair die is rolled. Probability of getting a $4$ is:

A fair die is rolled. Probability of getting a $4$ is:
  1. $\dfrac{1}{2}$
  2. $\dfrac{1}{3}$
  3. $\dfrac{1}{6}$
  4. $\dfrac{4}{6}$

Solution

Sample space $= \{1,2,3,4,5,6\}$. Favourable $= \{4\}$. $P(4) = \dfrac{1}{6}$.

Asked in: IMO

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