how to calculate weighted average?
2007-02-07 00:01:58 · 4 answers · asked by Shoooooooooooooooo 4 in Science & Mathematics ➔ Mathematics
Weighted Average
Click on the URL below for additional information concerning weighted average..
www.oregon.gov/BOLI/WHD/PWR/W_PWR_Calculating.shtml
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2007-02-07 00:47:22 · answer #1 · answered by SAMUEL D 7 · 1⤊ 0⤋
An example of weighted average is GPA.
For example:
You get an A in a 2 credit class and a B in a 5 credit class. Using a 4.0 scale, A=4 points, B=3 points, so the GPA is calculated by:
(points*credits + points*credits)/total credits
= (4*2 + 3*5)/(2+5)
= (8+15)/7
= 23/7
= 3.29 (approx)
2007-02-07 09:23:38 · answer #2 · answered by Mathematica 7 · 1⤊ 0⤋
A weighted average means that you give emphasis to one or more numbers in your list. You might count certain ones twice or by an extra 10%. You need to know the weighting factors (multipliers) you want and what numbers to use them on.
2007-02-07 08:14:16 · answer #3 · answered by Gene 7 · 1⤊ 0⤋
http://en.wikipedia.org/wiki/Weighted_mean
2007-02-07 08:18:23 · answer #4 · answered by 1988_Escort 3 · 1⤊ 0⤋