for second group, why the set of numbers of ( 132, 152, 153, 154, 213, 214 , 215, 216, 231, .......) is not included? since they are all three different numbers. https://www.flickr.com/photos/123101228@N03/14323629833/(adsbygoogle = window.adsbygoogle || []).push({});

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# Possible outcomes of rolling dice

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