A system may become infected by some spyware through the internet or e-mail. Eighty percent of the time the spyware arrivesvia the internet, twenty percent of the time via e-mail. If it enters via the internet, the system detects it immediately withprobability 0.7.If via e-mail, it is detected with probability 0.9.Let N be the event that the spyware enters the system via the internet.Let E be the event that the spyware enters the system via e-mail.Let D be the event that a system detects the spyware.findP(D) Probability that the system detects the spyware?

Given,P(N)=0.80P(E)=0.20P(D/N)=0.7P(D/E)=0.9

Answered: A system may become infected by some…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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