IE 300 / GE 331 Spring 2009 Midterm Exam
April 23, 2009
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Instructions
This exam is closed book and closed notes (and closed neighbor) except that two
8
.
5”
×
11” sheets of notes is permitted: both sides may be used. Calculators, laptop
computers, PDAs, iPods, cellphones, email pagers, headphones, etc. are not allowed.
The exam consists of
five
problems worth a total of 100 points. Not all problems are
worth the same points. Write your answers in the spaces provided.
Except for the TRUE/FALSE questions, you have to SHOW YOUR WORK. Answers
without appropriate justification will receive very little credit. If you need extra space,
use the back of the previous page or the scratch paper at the end of this booklet.
1
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Problem 1.
[21 points]
Let
X
and
Y
be two
independent
jointly continuous
random variables, and
W
and
Z
be two
uncorrelated
jointly continuous random
variables. Further let
a
and
b
be two real numbers. Read each line below carefully, and
circle TRUE if the statement is true
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 Spring '09
 NegarKayavash
 Probability distribution, Probability theory, probability density function

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