Posted by Jason L on .
the director of an insurance companies computing center estimates that the companies computer has a 20% chance of catching a computer virus. However they feel that there is only a 6% chance of the computers catching a virus that will completely disable the operating system. If the computer should catch a virus what is the probability that the operating system will be completely disabled?
A 
.012
.0374
.1954
.3
.45
Divide .06 by .20 for your answer.

Stats 
Anonymous,
.03