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 153015: 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 15 of the PCs connected to the LAN, and finds that 9 are infected; use proportion to estimate the number of infected PCs if there are a total of 202 PCs connected to the LAN.
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
If to be based on 15 sample PC which 9 are infected, it follows:
9%2F15 ---------> cross%289%293%2Fcross%2815%295=3%2F5
For every 5 PC, 3 are infected by proportion.
%283%2F5%29100=60% of the PC are with virus.
So if there are 202 in total:
%28202%29%2860%2F100%29=202%2A0.60=121.2
Conclusion: Estimated infected about 121 PCs
Thank you,
Jojo