A sample ofn observations has a sample mean of x = 100 and variance of o? 100. If a new observation is added, xn+1 100, the sample variance will a. Increase b. Decrease C. Stay the same

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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A sample ofn observations has a sample mean of x = 100 and variance of o?
100. If a new observation is added, xn+1
%3D
100, the sample variance will
a. Increase
b. Decrease
C. Stay the same
Transcribed Image Text:A sample ofn observations has a sample mean of x = 100 and variance of o? 100. If a new observation is added, xn+1 %3D 100, the sample variance will a. Increase b. Decrease C. Stay the same
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