RobertNiles.com
About Robert
Reporting Help
Finding Data on the Internet
Questions for Candidates
Stats Lessons
Mean
Median
Percent
Per capita
Standard Deviation
Margin of Error
Data Analysis
Sample Sizes
Stats Tests
Help Board
Bookstore


The Cartoon Guide to Statistics

This isn't some dumb-downed whitewash. It's a must-read for a beginner taking his or her first steps toward understanding stats.
More information
-->

Home > Statistics Every Writer Should Know > The Stats Board > Discusssion

gain standard deviation
Message posted by naz (via 206.213.209.31) on June 4, 2001 at 3:56 PM (ET)

how do i calculate an annualized gain standard deviation? i have monthly and quarterly gain standard deviation values, but is there a basic/direct equation that allows me to calculate the annualized gain standard deviation from either/or the monthly and quarterly values?


READERS RESPOND:
(In chronological order. Most recent at the bottom.)

Re: gain standard deviation
Message posted by JG (via 128.8.22.18) on June 5, 2001 at 2:35 AM (ET)

For statistically independent random variables, you can add variances. You can test to see if adding mothly variances will give you a quarterly variance.


Re: gain standard deviation
Message posted by BP (via 208.12.15.74) on July 6, 2001 at 3:45 PM (ET)

I have also been trying to find this solution. Several years ago I had a number to use to relate the two SD's so I know it exists. Did you come up with an answer yet?


Re: gain standard deviation
Message posted by BP (via 208.12.15.74) on July 6, 2001 at 3:56 PM (ET)

FYI as I looked further, I found this article which discusses the monthly vs annual issue std dev issue. Hope this helps.


Re: gain standard deviation
Message posted by BP (via 208.12.15.74) on July 6, 2001 at 3:58 PM (ET)

Oops, forgot to include the article. It is:
[PDF] www.aima.org/aimasite/articles/June%2000/Bart%20Janssen.pdf



Your $5 contribution helps cover part the $500 annual cost of keeping this site online.

Niles Online Sites:RobertNiles.comTheme Park InsiderViolinist.com

RobertNiles.com™, the site, content and services 咀opyright 1996-2002, Robert Niles.
All rights reserved. Questions? Comments? Read my Privacy Policy, or E-mail me!