SOLUTION: 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 fin the mean and variance.

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 fin the mean and variance.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
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.
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Binomial Problem with
mean = np = 40*0.55 = 22
var = npq = 40*0.55*0.45 = 9.9
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Cheers,
Stan H.
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