SOLUTION: A new virus is released on the internet; the administrator of a department's Local Area Network (LAN) is given five minutes by a manager to estimate the impact. The administrator

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Question 203114: A new virus is released on the internet; the administrator of a department's Local Area Network (LAN) is given five minutes by a manager to estimate the impact. The administrator samples 12 of the PCs connected to the LAN and finds that 7 are infected. Use a proportion to estimate the number of infected PCs if there are a total of 216 PCs connected to the LAN.
Answer by rfer(10432) About Me  (Show Source):
You can put this solution on YOUR website!
7/12:x/216
cross multiply
12x=7*216
12x=1512
x=126 infected