ECON 250 Midterm: ECON 250 Pastmidterm2 MT2Fall2011

• School: Queen's University
• Department: Economics
• Course: ECON 250
• Professor: All

Document Summary

Find (cid:22)w , the mean of w : suppose that a population is uniformly distributed between 0 and 12. Explain in detail: a random sample of eight salespersons that attended a motivational course on sales techniques was monitored in the three months before and the three months after the course. Answer all four questions in the answer booklet provided. Formulas and tables are provided at the end of the question pages: the following table displays the joint probability distribution of x and y . X = 0 x = 1 x = 2. 0. 16 (a) (9 marks) find the conditional probability function of x, given y = 1. P (y = 1) = 0:09 + 0:08 + 0:23 = 0:4. P (x = 0jy = 1) = p (x=0;y =1) P (x = 1jy = 1) = p (x=1;y =1) P (x = 2jy = 1) = p (x=2;y =1)