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To: Quicksilver

Thanks. Makes sense. Do you know how to weight? For ex., I want an accuate averaging of two different age groups, 19-44 and 45-60. How do I do that?


237 posted on 02/17/2016 6:04:11 PM PST by LS ("Castles Made of Sand, Fall in the Sea . . . Eventually" (Hendrix))
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To: LS

You’re welcome. Yes, I know how to weight. You will need to know the number, or have the means to calculate the number, in each of the groups you want to average together.

Let’s say a poll of 500 LV has 20% in the 19-44 age group:

number = .20 * 500 = 100 LV

And has 40% in the 45-60 age group:

number = .40 * 500 = 200 LV

Let’s say that Charlie Brown is the first choice of 70% of 19-44 and 50% of 45-60, and we want to know what the weighted average of the combined groups is:

((.70 * 100) + (.50 * 200)) / (100 + 200) = .5667

= 57% rounded

I hope that this makes sense.

BTW, I enjoy reading your analyses. :)


262 posted on 02/17/2016 10:19:50 PM PST by Quicksilver (I'll vote for anyone that can truly Make America Great Again!)
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