__________ returns a normal mean how to get a range in marsaglia how to get the range of normal values from polar function which parameter can be used to determine the mean of the polar method? how to use a polar method? how to get random variables in marsaglia what does marsaglia polar return value why does marsaglia polar generate value what is the standard deviation of marsaglia polar method marsaglia how to get polarity range what is the standard deviation and mean of marsaglia how to make marsaglia polar return values how do you get the standard deviation of the random variable in xi what is the standard deviation in marsaglia polar formula for calculating mean how do polar methods work what is the standard deviation of polar method why is my standard deviation a range what is the range for polar function in marsaglia