Find the mean and variance of the number of ink jet printer


a computer store has 50 printers of which 75 are laser printers and 15 are ink jet printers. if a group of 10 printers is chosen at random from the store, find the mean and variance of the number of ink jet printers.

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Basic Statistics: Find the mean and variance of the number of ink jet printer
Reference No:- TGS0119288

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