<PRE><B>Question 181008</B>
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 21% 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.
---
Ans: P(watches TV|reads newspapers) = [P(TV and newspapers)/P(newspapers)
= 0.21/0.24 = 0.875
----------------------------------- 
(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)
= 0.21/0.82 = 0.2561...
==============================
Cheers,
Stan H.
</PRE>