The mean of the numbers (x₁, x2, x3,...,xn) is . x. Show that the sum of the deviations about the mean is 0; that is, show Σ₁₁ (x₁-x) = 0.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The mean of the numbers (x₁, x2, x3,...,xn) is .
Show that the sum of the deviations about the mean
is 0; that is, show Σ₁₁ (x₁-x) = 0.
Transcribed Image Text:The mean of the numbers (x₁, x2, x3,...,xn) is . Show that the sum of the deviations about the mean is 0; that is, show Σ₁₁ (x₁-x) = 0.
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