Homework 1
ECO 320
Due: February 18, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the
Homework 1
ECO 320
Due: February 18, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the
ECO 320
Fall 2012
Test #2
KEY
(20) 1. The following table shows the non  zero values of the joint p.d.f. of the random variables
X andY.
X
2
1
y
0

2
1
10
3
10

10
4
10
1
2
6
2
21
14
Moreover, E[ X]=, ax=, and cry=.
10
25
100
6
x=1
10
4
x=2
=
10
= 0
Name_
ECO 320
Section
( Please print )
Fall 2011
Test #lB
Show all of your work. The# in ( ) in front of each question is the point value of
that question.
(29) 1. The random variable X has the following p.d.f.
f(x) =
X+
1
X
= 0, 1, 2, 3
10
elsewhere and
Syllabus for Economics 320:
Mathematical Statistics
Mark R. Montgomery
email: [email protected]
Revised: August 21, 2015
Contents
1
Overview
2
2
Readings up to the First Examination
4
1
Chapter 1
Overview
Textbook The textbook for Economics 3
Homework 4
ECO 320
Due: April 15, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the bo
ECO 320: Mathematical Statistics
Spring 2015
Mo We 05:30 pm06:50 pm
Melville Lbr W4525
Professor:
Email:
Oce hours:
Location:
Samuele Centorrino
[email protected]
Mo 1:30pm3:30pm
Room N613, 6th oor of the SBS building.
TA:
Email:
Oce ho
ECON 320: Mathematical Statistics
Midterm Exam, Spring 2015
Date: March 4, 2015
Samuele Centorrino
Student name:
Stony Brook ID:
INSTRUCTIONS (please read carefully):
There are 3 openended problems and 5 multiplechoice problems.
You have 80 minutes to s
ECO 320: Mathematical Statistics
Final Exam, Spring 2015
Date: May 14, 2015
Samuele Centorrino
Student name:
Stony Brook ID:
INSTRUCTIONS (please read carefully):
There are 5 openended problems and 8 multiplechoice problems.
You have 120 minutes to solv
ECO 320: Mathematical Statistics
Midterm Exam, Spring 2015
Date: March 4, 2015
Samuele Centorrino
Student name:
Stony Brook ID:
INSTRUCTIONS (please read carefully):
There are 3 openended problems and 5 multiplechoice problems.
You have 80 minutes to so
Homework 4
ECO 320
Due: April 15, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the bo
Homework 5
ECO 320
Due: April 29, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the bo
Homework 2 Answers
ECO 320
Due: March 4th, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to che
Homework 3
ECO 320
Due: October 23, 2014, 5PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the b
Lecture 7: Counting and Binomials
I)
Extra practice with conditional probability
This is a hard concept. You will need a lot of practice seeing conditional probability. Here is one
more practice problem.
A magazine survey reported the expense ratios for a
Lecture 8 Exam Review
I)
One last time on conditional probability
Olympic competitors are required to submit to a test for banned substances. If the athlete has
used banned supplements, the test has a 95 percent chance of a positive result. If the athlete
Lecture 10: Normal Distribution Extensions
I'm going to do some easy square shading exercises before solving these problems. I'll
reference back to their principles if you get stuck.
I)
Sales invoices have amounts normally distributed with a mean of $32 a
Homework 5
ECO 320
Due: April 29, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the bo
Homework 2
ECO 320
Due: March 4th, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the b
/If,~!<
Name._
Section
ECO 320
( Please print )
Fall2011
Test #1A
Show all of your work. The # in ( ) in front of each question is the point value of
that question.
(29) 1. The random variable X has the following p.d.f.
f(x) =
X+
10
1
X= Q,
elsewhere and
Section#: 1 2 Name: _ _ _ _ _ _ _ _ _ _ _ _
ECO 320
Fall2012
Test #1
(18)1. For 9\
f(x)
= cfw_x; x = 1 ~ x ~ 5 , the p.s.f. f(x) is defined as
= X
x = 1, 2, . , 5
15
=0
elsewhere. Given that A = cfw_ x; 1 ~ x
(4)a. P(A)
~
3 and B = cfw_ x; 4 < x
=
(4)b.
ECO 320
Fall2012
Test #1
KEY
(18)1 . For 9\ = cfw_ x; x = 1 :; x :; 5 , the p.s.f. f(x) is defined as
f(x)
= X
x
15
=0
= 1, 2, . , 5
elsewhere. Given that A= cfw_ x; 1:; x:; 3 and B = cfw_ x; 4 < x :; 5 ,
(4)a. P(A)
= ~ = i_
5
15
(4)b. P(A n B)= 0
( 4)c
Section#: 1 2 Name: _ _ _ _ _ _ _ _ _ _ _ _ _
ECO 320
Fall2012
Test #2
(20) 1. The following table shows the non zero values of the joint p.d.f. of the random variables
X andY.
X
2
y
2
10
4
10
0

1
(5)a. f X (
(3)b. E[
1
10
3
10

Moreover, E[ X]=
X) =
Chapter 1: Introduction to Data, Continued
Mark R. Montgomery
Economics
Lectures of 27 August and 1 September 2015
Experiments
1
Experiments
2
Examining numerical data
3
Associations between two variables
4
Considering categorical data
5
Comparing numeric
Welcome to Economics 320: Mathematical Statistics
and
Chapter 1: Introduction to Data
Mark R. Montgomery
Economics
Lecture of 25 August 2015
Economics 320
What will you learn here that equips you for todays job market?
Quantitative analytics In business,
Homework 3
ECO 320
Due: April 1, 2015, 10PM
This assignment is due at the date and time indicated above. Please submit your assignment
electronically using the Google form. The link of Google Form will be sent to your email. Do not
forget to check the box
Homework 0 Answers
ECO 320
Due: September 11, 2014, 5PM
This assignment is due at the date and time indicated above. Remember that this assignment
is not for grading. Please submit your assignment electronically using the Google form. The link
of Google F
ECO 320: Mathematical Statistics
Final Exam, Spring 2015
Date: May 14, 2015
Samuele Centorrino
Student name:
Stony Brook ID:
INSTRUCTIONS (please read carefully):
There are 5 openended problems and 8 multiplechoice problems.
You have 120 minutes to solv
Homework 0
ECO 320
Due: February 4, 2015, 10PM
This assignment is due at the date and time indicated above. Remeber that this assignment
is not for grading. Please submit your assignment electronically using the Google form. The link
of Google Form will b