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21 June, 19:38

In a company there are 11 execurives: six women and 5 men. Four are selected to attend a management seminar. Find the probability that one woman and three men are selected. Give your answer as a reduced fraction

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  1. 21 June, 23:20
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    Total 11 persons > men 5 > 5:6 = chosen 5/6 = not chosen 6/5. Women 6 > 6:5 chosen 5/6 not chosen. 10 persons total = men 4/6 - - 6/4 women = 5/5 - -6/4 + one women chosen. We can check as same as 7 outcomes = 4/12

    total less than outcomes = < 4/12 option

    Thus, probability is 5:6 + 4.6 + 3.6 + 5/6 + 5/5 + 3.5 = 13/18 + 13/16 LCM = 18/144 = 8/144 16/144 = 104/144 = 9/144 = 9x 13 = 117/144 = 104/144 + 117/144 = 221/288 = 79/288 can only be shown as 27.4% so i'm correct to say it is not greater than 4/12
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