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To compute the average of the squares of the elements of a vector V, aka the mean square, we (Note: use randn to create a random vector) Select one: a. We use polyfit which does least squares and skip the minimization part   b.we use sum(V.^2)./length(V*V)   c.we use sum(V.*V)/length(V)   d.we use mean(V)   e.we use sum(V^2)/length(V)

To compute the average of the squares of the elements of a vector V, aka the mean square, we (Note: use randn to create a random vector) Select one: a. We use polyfit which does least squares and skip the minimization part   b.we use sum(V.^2)./length(V*V)   c.we use sum(V.*V)/length(V)   d.we use mean(V)   e.we use sum(V^2)/length(V)

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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To compute the average of the squares of the elements of a vector V, aka the mean square, we (Note: use randn to create a random vector)

Select one:
a. We use polyfit which does least squares and skip the minimization part
 
b.we use sum(V.^2)./length(V*V)
 
c.we use sum(V.*V)/length(V)
 
d.we use mean(V)
 
e.we use sum(V^2)/length(V)
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