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Question:

A die is thrown once. Find the probability of getting a number which (i) a prime number; (ii) a number lying between 2 and 6.

Solution:

Sample space = {1, 2, 3, 4, 5, 6}

i) P(Prime number) = Number of prime numbers / Sample space
P(Prime number) = 3 / 6 = 1/2

ii) P(Number between 2 and 6) = 3 / 6 = 1/2