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A lot contains 15 items of which 5 are d...

A lot contains 15 items of which 5 are defective. If three items are drawn at random, find the probability that
none of the three is defective. Do this problem directly.

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As none of the 3 items are defective we have to draw 3 non-defective items one after another.`therefore` Their probability=`10/15xx9/14xx8/13`
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MBD PUBLICATION-PROBABILITY-QUESTION BANK
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