A die is rolled, then the probability that a number 1 or 6 may appear is
When a die is rolled there are in total 6 possibilities.
∴ n(S) = 6
Let E denote event of getting 1 or 6
∴ n(E) = 2
∴ P(E) = 2/6 = 1/3
Hence,
P(E) = 1/3
As our answer matches only with option (c)
∴ Option (c) is the only correct choice.