Question 1163413
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It is the binomial type probability distribution problem.


The number of trial n= 3; the probability of the success trial is  {{{3/4}}},  and the number of success trial k = 1. 


    P = {{{C[3]^1*(3/4)^1*(1-3/4)^(3-1)}}} = {{{3*(3/4)^1*(1/4)^2}}} = 0.140625  ~= 14.1% (rounded).     <U>ANSWER</U>
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To see many other similar solved problems, look into the lessons

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/Probability-and-statistics/Solving-problems-on-Binomial-distribution-manually.lesson>Simple and simplest probability problems on Binomial distribution</A> 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/Probability-and-statistics/Typical-binomial-distribution-probability-problems.lesson>Typical binomial distribution probability problems</A> 

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