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3 digits are chosen at random from 1,2,3,4,5,6,7,8 and 9 without repeating any digit.

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3 digits are chosen at random from 1,2,3,4,5,6,7,8 and 9 without repeating any digit. What is the probability that their product is odd?  

(a) 2/3 (b) 5/108 (c) 5/42 (d) 8/42

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(c) Let E be the event of selecting the three numbers such that their product is odd and S be the sample space. For the product to be odd, 3 numbers choosen must be odd.

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