Re: Daily question

Posted by Amit Goyal on Mar 05, 2009; 11:26am
URL: http://discussion-forum.276.s1.nabble.com/Daily-question-tp2328964p2428803.html

5-7 March, 2009
Answer Farha's question. You can assume that they toss a fair coin everytime, if its head then A wins and if its tail then B wins.

We have following data for two countries.
In country A, 80 labor-hrs  are required to produce one unit of x and 90 labor-hrs  are required to produce one unit of y.
In country B, 120 labor-hrs  are required to produce one unit of x and 100 labor-hrs  are required to produce one unit of y.
Fill in the blanks:
Country ___ will export x and country ___ will export y.

Let A and B be events having positive probability. State whether each of the following statements is        i) necessarily true, ii) necessarily false, or iii) possibly true
(a) If A and B are mutually exclusive, then they are independent.
(b) If A and B are independent, then they are mutually exclusive.
(c) P(A)=P(B)=0.6, and A and B are mutually exclusive.
(d) P(A)=P(B)=0.6, and A and B are independent.