x2 3 4 16 7 49 81 Total 23 155 Here is part of a calculation in a spreadsheet working with population of 4 data items data. Which statement is incorrect? A. Ex = 23 & Ex² = 155 В. Е(x) %3D 5.75 C. The square of the sum of the x values is 155. D. H = 5.75

MATLAB: An Introduction with Applications
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Q3.
x2
3
9
4
16
7
49
9
81
Total
23
155
Here is part of a calculation in a spreadsheet working with
population of 4 data items data. Which statement is incorrect?
A. Σχ23 & Σx? 155
В. Е(x) %3D 5.75
C. The square of the sum of the x values is 155.
D. µ = 5.75
Transcribed Image Text:Q3. x2 3 9 4 16 7 49 9 81 Total 23 155 Here is part of a calculation in a spreadsheet working with population of 4 data items data. Which statement is incorrect? A. Σχ23 & Σx? 155 В. Е(x) %3D 5.75 C. The square of the sum of the x values is 155. D. µ = 5.75
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