channyfilthy4927 channyfilthy4927

16-01-2018
Mathematics

contestada

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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jaymiedavis101 jaymiedavis101

16-01-2018

your mean for this problem would be 4.7 and you variance would be 2.5

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