x= 1, 3, 7, 10

y= 2, 0, 4, 8

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- Feb 14th 2011, 08:24 PMmath321simple problem

x= 1, 3, 7, 10

y= 2, 0, 4, 8 - Feb 14th 2011, 08:32 PMpickslides
These are bivariate observations, then

- Feb 14th 2011, 08:38 PMmath321
why did u put n = 4

- Feb 14th 2011, 08:53 PMpickslides
Well n=4 if the sample is counted as one per (x,y)

- Feb 15th 2011, 06:08 PMtopsquark
Please see rule #2 here. Please do not do this again.

Both sums are right. What's n? (That's the question you were last on in the other thread, too.)

-Dan - Feb 15th 2011, 06:12 PMmath321
n represents the number of points of data

so what i suppose to do - Feb 15th 2011, 06:17 PMtopsquark
- Feb 15th 2011, 06:20 PMmath321
so therefore n=4

- Feb 15th 2011, 06:21 PMmath321
got 36.5

- Feb 16th 2011, 04:35 AMHallsofIvy
What exactly is your question? Do you not understand what the means? It just means "add them up". I assume that n is 4 here.