SOLUTION: Hi, I need help on the following stats problem... Thanks in advance.
A computer store has 50 printers of which 40 are laser printers and 10 are ink jet printers. If a group of 10
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-> SOLUTION: Hi, I need help on the following stats problem... Thanks in advance.
A computer store has 50 printers of which 40 are laser printers and 10 are ink jet printers. If a group of 10
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Question 51705: Hi, I need help on the following stats problem... Thanks in advance.
A computer store has 50 printers of which 40 are laser printers and 10 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.
Mean=2 Variance= 3
Did I do this correctly? Answer by stanbon(75887) (Show Source):
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