Answer
a. 2847
b. 8105409
c. 1158777
Work Step by Step
$a. 387+414+404+396+410+422+414= 2847$
$b. (2847)^{2} = 8105409$
$c. (387^2)+(414^2)+(404^2)+(396^2)+(410^2)+(422^2)+(414^2) = 1158777$
Introductory Statistics 9th Edition
by Mann, Prem S.
Published by
Wiley
ISBN 10:
1-11905-571-7
ISBN 13:
978-1-11905-571-6
Chapter 1 - Section 1.7 - Summation Notation - Exercises - Page 24: 1.39
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