I need help with this parts a and b please n1nFor sample values X1, X2,X, the sample variance is s² =n-1-Σ (x-x) ², where x = -- Σ x; is the sampleni=1i=1mean.(a) Show that the sample variance is unchanged if a constant c is added to or subtracted from each value in thesample.(b) Show that the sample variance becomes c² times its original value if each observation in the sample is multipliedby c.(a) If a constant c is added to or subtracted from each value in the sample, how do the sample values x, change?Each xbecomes cx;.remains unchanged.becomes (x + c).

Let x1, x2, ....xn be the random samples Define sample variances2=1/(n-1)∑i=1n(xi−x¯)2where x¯ be…

Answered: n 1 n For sample values X1, X2, X, the…

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter4: Writing Linear Equations

Section: Chapter Questions

Problem 12CR

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