Answer
a. n = 1+2+3+5+3 = 14
b. $ΣX$ = (5*1)+(4*2)+(3*3)+(2*5)+(1*3) = 35
c. $ΣX^{2}$ = $(5^2*1)+(4^2*2)+(3^2*3)+(2^2*5)+(1^2*3)$ = 107
Work Step by Step
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Essentials of Statistics for the Behavioral Sciences 8th Edition
by Gravetter, Frederick J.; Wallnau, Larry B.
Published by
Cengage Learning
ISBN 10:
1133956572
ISBN 13:
978-1-13395-657-0
Chapter 2 - Frequency Distributions - Problems - Page 56: 4
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