EC305 Economic Statistics
Boston University, Fall 2010
by Arhan Ertan
HW2
Due: October 14, in class. 1. Suppose you roll a pair of dice. Let A be the event that you observe an even number. Let B be the event that you observe a number greater than seven. a
EC305 Economic Statistics
Boston University, Fall 2010
by Arhan Ertan
HW1
Due: September 21, in class 1. A recent study examined the intended travel destinations for a sample of residents from Grand Rapids, Michigan. The respondents indicated the likely d
EC305 Economic Statistics
Boston University, Fall 2010
by Arhan Ertan
HW1
Answers are at the bottom of this file! 1. A recent study examined the intended travel destinations for a sample of residents from Grand Rapids, Michigan. The respondents indicated
EC305 Economic Statistics
Boston University, Fall 2010
by Arhan Ertan
HW2 Answers
1. Suppose you roll a pair of dice. Let A be the event that you observe an even number. Let B be the event that you observe a number greater than seven. a. What is the inter
Econ 305C Fall 2012 -
1.
Solution for Midterm 1
Yuan TIAN [email protected]
SOLUTION:
Let
G = cfw_a stoplight is green
Y = cfw_a stoplight is yellow
R = cfw_a stoplight is red
P = cfw_a car
By Bayes' rule,
P(G | P)
P( P | G) P(G)
P( P | G) P(G) P( P | Y) P(Y) P(
Econ 305A Fall 2012 -
Solution for Midterm 1
Yuan TIAN [email protected]
1.
SOLUTION:
Some portfolio is dominated if and only if the backward bending property
holds: that is, if
B
A, B
(since in this example
B
A
). Thus, since some
A
portfolio is dominated, we ca
Exam Formulas Page
Economics 305
Fall 2012
Location of a percentile:
Lp = (n + 1)
P
100
Probability of the union of two events P (A B) = P (A) + P (B) P (A B)
Total Probability Rule: Let B1 , . . . , Bn be a partition of S. For any event A S,
n
P (A Bi
Exam Formulas Page
Economics 305
Fall 2012
Location of a percentile:
Lp = (n + 1)
P
100
Probability of the union of two events P (A B) = P (A) + P (B) P (A B)
Total Probability Rule: Let B1 , . . . , Bn be a partition of S. For any event A S,
n
P (A Bi
Statistics: Measurement in Economics
Econ 103
Lecture 1.1: Introduction & Basic Ideas
Francesco Decarolis
1.1
What is Statistics?
Statistics is a way to get information from data
Statistics
Data
Information
Statistics is a tool for creating ne