Ok I am stuck up deriving the 'variance for Binomial Distribution' and mean for the 'Hypergeometric distribution '
For variance part , I first derived that variance can be written as =(second moment about origin) - (square of mean)
But I am having trouble calaculating the second moment about the origin .Please can sum1 tell me sum site which can help me?
For variance part , I first derived that variance can be written as =(second moment about origin) - (square of mean)
But I am having trouble calaculating the second moment about the origin .Please can sum1 tell me sum site which can help me?