Question 865732
In a survey,55%of the voters support a referendum.if 40 voters are chosen at random and x is the number of voters that support the referendum find the mean and variance.

-------
Binomial Problem with
mean = np = 40*0.55 = 22 
var = npq = 40*0.55*0.45 = 9.9
=================================
Cheers,
Stan H.
====================