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A computer store has 75 printers of which 35 are laser printers and 40 are ink jet printers. if a group of 10 printers is chosen at random from the store, find the mean and vari…

A computer store has 75 printers of which 35 are laser printers and 40 are ink jet printers. if a group of 10 printers is chosen at random from the store, find the mean and vari…
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A computer store has 75 printers of which 35 are laser printers and 40 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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User Ansar Muhammad
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1 Answer

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your mean for this problem would be 4.7 and you variance would be 2.5
answered
User Parag Bhayani
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