The following results on summations will help us in calculating the sample variance s?. For any constant c, the following apply. 1. C = nc i = 1 Cy i = C 2. i = i = 1 3. (x; + Y;) Yi i = 1 i = 1 Use 1, 2, and 3 to show that 2 1 s2 = (Y, - 7)² = n - 1 i = 1 n - 1

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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The following results on summations will help us in calculating the sample variance s?. For any constant c, the following apply.
1.
C = nc
i = 1
Cy i
= C
2.
i =
i = 1
3.
(x; + Y;)
Yi
i = 1
i = 1
Use 1, 2, and 3 to show that
2
1
s2 =
(Y, - 7)² =
n - 1
i = 1
n - 1
Transcribed Image Text:The following results on summations will help us in calculating the sample variance s?. For any constant c, the following apply. 1. C = nc i = 1 Cy i = C 2. i = i = 1 3. (x; + Y;) Yi i = 1 i = 1 Use 1, 2, and 3 to show that 2 1 s2 = (Y, - 7)² = n - 1 i = 1 n - 1
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