RES 341 Lab test 1-4

RES 341 Lab test 1-4 - Ans: P(watches TV|reads newspapers)...

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A survey showed that 24% of college students read newspapers on a regular basis and that 82% of college students regularly watch the news on TV. The survey also showed that 20% of college students both follow TV news regularly and read newspapers regularly. (a) What is the probability that a student watches TV news regularly, given that he or she regularly reads newspapers? Round your answer to 2 decimal places.
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Unformatted text preview: Ans: P(watches TV|reads newspapers) = [P(TV and newspapers)/P(newspapers) = 0.2/0.24 = 0.83 (b) What is the probability that a randomly selected college student reads newspapers regularly, given that he or she watches TV news regularly? Round your answer to 2 decimal places. Ans: P(newspapers | watches TV) = [P(newspapers and TV)] / P(TV) = 0.2/0.82 = 0.24...
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This document was uploaded on 05/10/2011.

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