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Sample Space = {1 , 2,
3, 4, 5, 6}
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n(S) = 6
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a. Let A = Event of
getting number less than 3.
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∴ A = { 1 , 2 }
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∴ n(A) = 2
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∴ P(A) = n(A)/n(S) = 2 / 6 = 1/3
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b. Let B = Event of getting a prime number
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B = {2 , 3 , 5 }
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∴ n(B) = 3
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∴ P(B) = n(B) /n(S) = 3 / 6
= 1/2
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A die is thrown, find the probability of the events a. Getting a number less than 3, b. Getting a prime number.
