Question 1168535
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(a)  P = 0.31*0.31*0.31 = {{{0.31^3}}}.                <U>ANSWER</U>


(b)  P = (1-0.31)*(1-0.31)*(1-0.31) = {{{0.69^3}}}.    <U>ANSWER</U>
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If you can not compute it mentally, use your calculator.


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The formulas are self-explanatory.


It means that if you have question/questions, look to them attentively and listen what they will tell you.