Question 1179480
.
<pre>

It is the binomial type probability distribution.


The number of trial n= 7; the probability of the success trial is  0.265,  and the number of success trial k = 4. 


    P = {{{C[7]^4*0.265^4*(1-0.265)^3}}} = {{{((7*6*5)/(1*2*3))*0.265^4*0.735^3}}} = 0.0685 = 6.85% (rounded).     <U>ANSWER</U>
</pre>

------------------


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> 

in this site.