Question 1096487
<br>expansion using the binomial formula....<br>
The probability that the visitor arrived on the website in error is 0.18; so the probability that they intended to reach the website is 0.82.<br>
Then the probability that 2 out of 7 visitors reached the website in error is
{{{C(7,2)*(0.18^2)*(0.82^5)}}}<br>
You can do the calculation....