Western University (Ontario)  Also known as University of Western Ontario
STATS 2143
STATISTICS 2143

Winter 2012
Statistical Sciences 2143B  2012
Quiz 1
Wednesday, February 1, 2012
7:00 to 7:50 pm
Name:
student number:
Show ALL of your work in the exam booklet provided, clearly stating what
question you are answering
(Test is out of 25 marks)
Formula Page
Addition
Western University (Ontario)  Also known as University of Western Ontario
STATS 2143
STATISTICS 2143

Fall 2014
STAT 2857 Assignment 4
Problem 1. a) Find the moments of the random variable X if its moment generating function is
MX (t) = (1 p1 p2 ) + p1 et + p2 e2t .
b) What is the variance of X?
Problem 2. Find the probability P (X 1.23) if X has moment generating