Question 1196305
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            In your post,  write  {{{highlight(0.8)}}}  for the probability instead of your mistakenly written  0,8.



<pre>
It is a typical binomial distribution probability problem.


Use the standard formula


    P(n=10; k=7; p=0.8) = {{{C[n]^k*p^k*(1-p)^(n-k)}}} = {{{C[10]^7*0.8^7*(1-0.8)^(10-7)}}} = {{{((10*9*8)/(1*2*3))*0.8^7*0.2^3}}} = 0.2013  (rounded).    <U>ANSWER</U>
</pre>

Solved.