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Question
Choose the correct alternative answer for the following question.
A die is rolled. What is the probability that the number appearing on upper face is less than 3 ?
Options
`1/6 `
`1/3 `
`1/2`
0
Solution
Sample Space (S) = {1, 2, 3, 4, 5, 6}
∴ n(S) = 6
Event A: a number is less than 3
A = {1, 2}
∴ n(A) = 2
`therefore P (A) =(n(A))/(n(S)`
`=2/6`
`=1/3`
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