A question that I've yet to figure out how to solve and I could use your help
An office conducts a survey on the price of m/s[imath]^2[/imath] in 3 areas
in the first area they take 10 samples and the mean is 45$
in the second area they take 20 samples and the mean is 50$
in the third area they also take 20 samples
the mean of the all the samples is 51$
and sum of all the samples squred is 137000
what is the Sum squred between the areas?
An office conducts a survey on the price of m/s[imath]^2[/imath] in 3 areas
in the first area they take 10 samples and the mean is 45$
in the second area they take 20 samples and the mean is 50$
in the third area they also take 20 samples
the mean of the all the samples is 51$
and sum of all the samples squred is 137000
what is the Sum squred between the areas?
