Suppose a dataset has 3 variables, X₁, X₂ and X3. Each variable is standardized and a principalcomponent analysis is then carried out using the standardized data.(a) Write down the total variance that would result. Justify your answer.(b)Suppose that Kaiser's criterion indicates 2 components should be retained. Write downvariances for each of the 3 components that would be compatible with this observation.(c)Sketch a scree plot that indicates only one of the 3 components should be retained. (Note thecorresponding variances for the components need not match those you give in part (b).)

(a) The total variance in a principal component analysis (PCA) is equal to the sum of the variances…

Answered: Suppose a dataset has 3 variables, X₁,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Please use ANOVA

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