Drexel dragonThe Math ForumDonate to the Math Forum

Ask Dr. Math - Questions and Answers from our Archives
_____________________________________________
Associated Topics || Dr. Math Home || Search Dr. Math
_____________________________________________

How to Average


Date: 9/12/96 at 10:44:10
From: Anonymous
Subject: How to Average

I'm stuck on how to do averages.  What is the average mass of 11.935g,
11.936g, 11.937g and 11.938g?  Also, show calculations when averaging
20mL, 21 mL, and 22mL.  What is the formula for averaging?  Thanks, 
Dr. Math!


Date: 9/12/96 at 12:19:35
From: Doctor Leigh
Subject: Re: How to Average

To average any set of data, you add up all of the data and then divide 
by the number of elements that there are.  

For example, to answer your first question, you would add 
11.935 + 11.936 + 11.937 + 11.938 to get 47.746. You would then divide 
by 4 (because we added four numbers). The average of these numbers is 
11.9365.

Try your second set of numbers. It involves the exact same process.

Thanks for your question!

-Doctor Leigh Ann,  The Math Forum
 Check out our web site!  http://mathforum.org/dr.math/   
    
Associated Topics:
Middle School Statistics

Search the Dr. Math Library:


Find items containing (put spaces between keywords):
 
Click only once for faster results:

[ Choose "whole words" when searching for a word like age.]

all keywords, in any order at least one, that exact phrase
parts of words whole words

Submit your own question to Dr. Math

[Privacy Policy] [Terms of Use]

_____________________________________
Math Forum Home || Math Library || Quick Reference || Math Forum Search
_____________________________________

Ask Dr. MathTM
© 1994-2013 The Math Forum
http://mathforum.org/dr.math/