Question 1156338
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P = {{{C[7]^3*(1/6)^3*(5/6)^4}}} = {{{((7*6*5)/(1*2*3))*(1/6)^3*(5/6)^4}}} = 0.078143 = 0.078 (rounded).     <U>ANSWER</U>


It is the binomial type probability distribution.


The number of trial n= 7; the probability of the success trial is  {{{1/6}}},  and the number of success trial k = 3. 
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