Concept explainers
Answer to Problem 77E
Probability for the randomly selected internet user downloads music and doesn’t care about copyrighted music is 0.1943.
Explanation of Solution
Given information:
29% of the Internet users download music files.
67% of the downloaders say they don’t care if the music is copyrighted.
Calculations:
According to general multiplication rule,
Let
D: Internet users download music files
C: Downloaders don’t care about copyrighted music
Now,
The corresponding probabilities:
Probability for the internet users download music files,
Probability for the downloaders don’t care about copyrighted music,
Apply the general multiplication rule:
Thus,
Probability that a randomly selected Internet user downloads music and doesn’t care if it’s copyrighted is 0.1943.
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