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Qus: Find the probability of a selected number is a multiple of 4 from the numbers 1, 2, 3, 4, 5, …15.

Qusसंख्या 1, 2, 3, 4, 5, …15 में से चयनित संख्या के 4 का गुणज होने की संभावना ज्ञात कीजिए।


A. 1/5
B. 1/3
C. 4/12
D. 2/15


Solution
A. 1/5



Explanation

 S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}

Multiples of 4 from the sample space = {4, 8, 12}

Therefore, the probability of the selected number is a multiple of 5 is 3/15 = 1/5.

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