Give your answer to 4 decimal places.

The answer is 0.0003.

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the only possible combinations to get a sum of 10 are: 1,1,1,1,1,1,4

1,1,1,1,1,2,3

1,1,1,1,2,2,2

arranging the 1 possibility gives: 7!/6! arranging the second probability gives: 7!/5! arranging the third probability gives: 7!/4!3! now adding the the probabilities for each case gives 84 , divided by total number ofprobalility: 6^7 the answer is 84/6^7 =0.0003