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From a group of 4 men ,3 women , 2 persons are selected at random, find the probability at least one man is selected ?
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From a group of 4 men ,3 women , 2 persons are...
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Nov 13, 2021
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JackTerrance
From a group of 4 men ,3 women , 2 persons are selected at random, find the probability at least one man is selected ? A. 6 7 B. 7 6 C. 5 6 D. 11 21 Select the correct answer from above options
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Nov 13, 2021
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JackTerrance
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Correct Answer - A 7C2= 7×6 2 =21 4C1×3C1+4C2=4×3+ 4×3 2 =4×3+ 4×3 2 =12+6=18 P= 18 21 = 6 7
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