A computer store has 80 printers of which 30 are laser printers and 50 are inkjet printers. If a group of 10 printers is chosen at random from the store, find the mean and standard deviation (Stdev) of the number of inkjet printers. O A. Mean = 3.3, Stdev = 1.5 O B. Mean = 6.25, Stdev = 2.34 O C. Mean = 6.25, Stdev = 1.53 O D. Mean = 50, Stdev = 4.33

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A computer store has 80 printers of which 30 are laser printers and 50 are inkjet printers. If a group of 10 printers is chosen at random from the store, find the mean and
standard deviation (Stdev) of the number of inkjet printers.
A. Mean = 3.3, Stdev = 1.5
%3D
O B. Mean = 6.25, Stdev = 2.34
%3D
%3D
O C. Mean = 6.25, Stdev = 1.53
D. Mean = 5O, Stdev = 4.33
%3D
Transcribed Image Text:A computer store has 80 printers of which 30 are laser printers and 50 are inkjet printers. If a group of 10 printers is chosen at random from the store, find the mean and standard deviation (Stdev) of the number of inkjet printers. A. Mean = 3.3, Stdev = 1.5 %3D O B. Mean = 6.25, Stdev = 2.34 %3D %3D O C. Mean = 6.25, Stdev = 1.53 D. Mean = 5O, Stdev = 4.33 %3D
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