Class Notes (836,374)
United States (324,483)
Boston College (3,565)
Economics (206)
ECON 2209 (36)
Karagodsky (36)
Lecture 14

ECON 2209 Lecture 14: 24February_EconStats_Karagodsky
Premium

2 Pages
45 Views
Unlock Document

Department
Economics
Course
ECON 2209
Professor
Karagodsky
Semester
Fall

Description
EconStatistics February 24 2017 Topics Distribution of sample mean Central Limit Theorem 1 Distribution of Sample Mean The area under a distribution curve tells us the probability of people that will be ____. We can make something similar with a average of a group of samples of a certain size. Our data points are just sample averages, so we have: 1;2;3 ;:::nx where: i= x1;x2;x3;:::nx and n 1 X = xi n i=1 1.1 Expected value and variance Expected value of a sample mean is dened as: Xn E[] = E[ x ] n i i=1 1Xn = n i=1 1 = n n = 1
More Less

Related notes for ECON 2209

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit