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-- Multiply the first averages by the number of observation for each set of these.
-- Add up the sets of averages.
-- Divide the sum by the total number of observations (Add cardinaility of each set).
-- The result is the average of the averages.
If you say have 4 "average" value and just add these, and divide by 4, the result is "unfair" because average may be of 3 observations, while another of 1000. So, to "compensate" and make every observation just as valuable, you re-generate the "sum of sums" and then divide by the total number of observations.
If all sets are the same you can divide by number of observations.
What else can I help you with?
Can you average an average?
You can get the average of an average, but you would be averaging one number, so you would get the same result. You can get the average of a set of averages, though to make sense they will often need to be a weighted average of averages.
What is average of averages?
It is also an average. It is usually a better measure of the average value of the characteristic that is being measured.
Is a sum of averages accurate?
No, a sum of averages is NOT as accurate as the average of the whole. For example: A=avg (1,10) = 5.5 B=avg (1, 1, 1, 1, 1) = 1 avg(A,B) = 3.25 [Average of averages] avg(1,1,1,1,1,1,10) = 2.29 [The original data set]
Why cant you average an average?
You can't average an average because averages are calculated based on specific data sets, and combining them without considering the underlying sample sizes can lead to misleading results. For instance, if you average the average test scores of two classes with different numbers of students, you may not accurately represent the overall performance. To properly combine averages, you need to weight them according to the size of their respective data sets.
What is statistical average?
average is defined as a single value which has tendency to represent the data as a whole. averages are also called "measure of central tendency" or "measure of location"
Can you average an average?
You can get the average of an average, but you would be averaging one number, so you would get the same result. You can get the average of a set of averages, though to make sense they will often need to be a weighted average of averages.
How do you get a total from a group of averages?
Average = Total/Count so Total = Average*Count.
What is average of averages?
It is also an average. It is usually a better measure of the average value of the characteristic that is being measured.
Is a sum of averages accurate?
No, a sum of averages is NOT as accurate as the average of the whole. For example: A=avg (1,10) = 5.5 B=avg (1, 1, 1, 1, 1) = 1 avg(A,B) = 3.25 [Average of averages] avg(1,1,1,1,1,1,10) = 2.29 [The original data set]
Does Jordan have a career average of 30.4?
He has many averages, but yes this is one of them.
What are averages used for?
an average is the most frequent number (or result) in a set of data.
A NFL Head coach averages getting paid in a yearly average?
4.5mm
What is average temperature on Mount Everest?
-30 degreesThe summit averages -33F.
What is the yearly average rainfall in pa?
It averages 44 inches per year.
Is the average the same thing as the mean?
A Mean is a type of average, but there are other kinds of averages too, Modes and Medians.
What are 3 major stock averages?
3 major stock INDEXES, not averages, Dow Jones Industrial Average (DJIA), NASDAQ, and S&P 500.
What is the difference between Average method vs weighted average method?
in weighted average method we assigns the weight to the averages while in average methods we dnt do this
