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


A computer store has 75 printers of which 25 are laser printers and 50 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 printers
Reference No:- TGS0110508

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