New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here


by: Miss Adeline Weimann


Miss Adeline Weimann
GPA 3.57

Richard Startz

Almost Ready


These notes were just uploaded, and will be ready to view shortly.

Purchase these notes here, or revisit this page.

Either way, we'll remind you when they're ready :)

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

Richard Startz
Class Notes
25 ?




Popular in Course

Popular in Economcs

This 6 page Class Notes was uploaded by Miss Adeline Weimann on Wednesday September 9, 2015. The Class Notes belongs to ECON 482 at University of Washington taught by Richard Startz in Fall. Since its upload, it has received 25 views. For similar materials see /class/192465/econ-482-university-of-washington in Economcs at University of Washington.




Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/09/15
Economics 482 Professor Startz Mathematics Useful for Economics 482 Herein one can find some facts from mathematics likely to be useful for Econ 482 1 Sigma notation a 2x E x1 x2 ocm1 xquot Frequently we just write 2x and let 391 limits and subscripts be implicit 2 2 x x u x x u 2 2 i1 1 I I xl x1u1 x2x2uz b39 2 2 x2 xz x2 2x 1 2 11 11 Or 2 gt i 2 x xu 3 x xu i1 i1 I i1 I I L xlul x2 2 2 2 39 x2x2 x2 X 1 2 i1 H 2 From calculus K 31X zXz 1 jaX zX fy Zy 0t2 b 2 Sf 2Zy a 0 c argminZani 02 amp a n il page 2 3 From algebra 2 2 2 alx1 azx2 anxn a1 x1 alalex2 ala3xlx3 alanxlxn 2 2 a2a1x2x1 02x2 aza3x2x3 39 39 39 azanxzxn 2 2 ana1xnx1 anazxnxz 39 39 39 an xquot page 3 4 From statistics about population distributions If the probability density function pdt for a random variable x is f x then a Expected value i Ex 2 xi f xi for discrete distributions imin x ii Ex J x f xdx for continuous distributions b Variance i var x quotif xi Ex2 f xi for discrete distributions ii varx J x Ex2 f xdx for continuous distributions c Standard deviation i stddevx E varx If thejoint pdf for x and y is fxy then d Covariance 39 covxy if if xi Exyj Eyfxlyj for jmin y imjnx discrete distributions H covxy T Tx Exy Eyfxydxdy for foo foo continuous distributions H H page 4 e Correlation COVxy i corrxy E W page 5 5 From statistics about samples If the sample size is n then a Expected value mean l quot 1 x x b Variance c Covariance i covxy z zxxi y 3 H 6 From mathematical statistics If 6117 are constants and XY and Z are random variables a EaXaEX b EaX aEX c EaX bY aEX bEY Y a bX 39 YEYlbXEXl e varaX VarX f varaX a2 varX g varXEXEX2EX2EX2 page 6 I2quot corraXbY E i varX EXzi EX 0 c0VaXbY COVXY COVaXbY abc0VXY 39 COVX YZ COVXZ COVYZ covXXvarX X1EXEXYEYEXYEXEY i 00VXY EXYz39 EX 0 or EY 0 varaX bYa2varXb2varY2abcovXY abc0VXY c0rrXY azvarXbzvarY XNuoz 2 NO1 X NuX039 Y NuY039039XY E COVXY gt aX bY NauX bypazoj bza 2ab039XY


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Anthony Lee UC Santa Barbara

"I bought an awesome study guide, which helped me get an A in my Math 34B class this quarter!"

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.