Assume a variable has only 3 observations: x1=1, x2=5, x3=6. What is the variance of this variable x? 8.6 None of others. 4.7 2.9

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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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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Assume a variable has only 3 observations: x1=1, x2=5, x3=6. What is the variance of this variable x?
8.6
None of others.
4.7
2.9
Transcribed Image Text:Assume a variable has only 3 observations: x1=1, x2=5, x3=6. What is the variance of this variable x? 8.6 None of others. 4.7 2.9
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