Class Notes (836,999)
United States (324,882)
Boston College (3,565)
Economics (206)
ECON 2209 (36)
Karagodsky (36)
Lecture 1

ECON 2209 Lecture 1: 18January_EconStatistics_Karagodsky
Premium

2 Pages
68 Views
Unlock Document

Department
Economics
Course
ECON 2209
Professor
Karagodsky
Semester
Fall

Description
EconStatistics January 18 2017 1 Why should we study Statistics Studying Statistics gives us tools to analyze large sets of data. 2 Summation Notation Summation notation is used to sum a series of numbers. If we have a set: f2, 4, 6, 9, 7, 5g Then this: X3 xj= the sum of all X from 1 to 31= X 2 X +3X = 12 x=1 In the above example, X is the series and J is the order. If J = 3, then x would be 6. Similarly: X3 4x = 4X + 4X + 4X j 1 2 3 x=1 2.1 Distribution Property (factoring out) From the above example you can factor out the common terms. For example: 3 X 4xj= 4X 1 4X +24X = 3(X + 1 + X2) = 3(12) x=1 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