Two numbers are selected randomly from set S = 1,2 , 3,4 , 5,6 without replacement one by one. The probability that a minimum of two number is less than 4 , is

Question

Two numbers are selected randomly from set S = 1,2 , 3,4 , 5,6 without replacement one by one. The probability that a minimum of two number is less than 4 , is, 1 15, 14 15, 1 5, 4 5

MARKS App · Accepted Answer

Total cases = C 2 = 15 6 Minimum of 2 numbers 4 = Total – (both numbers must be ≥ 4 ) = 15 - C 2 = 12 3 The required probability = 12 15 = 4 5

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