Theorem. If there are r series of observations X1, X2, ... X, then the mean M of the whole series is related to the means M1, M2, ...,. „ M, of the component series by the equation NM = N,M1+ N2M2 + + N,M, ...
Theorem. If there are r series of observations X1, X2, ... X, then the mean M of the whole series is related to the means M1, M2, ...,. „ M, of the component series by the equation NM = N,M1+ N2M2 + + N,M, ...
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.2: Arithmetic Sequences
Problem 68E
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