<PRE><B>Question 736025</B>
The probability of a radar station detecting an enemy plane is 0.65 and the probability of not detecting an
enemy plane is 0.35. If 20 stations are in use, what is the expected number of stations that will detect an
enemy plane?
-----
Binomial Problem:
E(x) = mean = np
-----
Ans: u = np = 20*0.65 = 13
=================================
Cheers,
Stan H.
=====================</PRE>