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17-10-2022
Mathematics

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The following data values represent a sample. What is the variance of the sample? x = 7. Use the information in the table to help you.
A. 14.4
B. 4.2
C. 18
D. 3.8

X 7 5 11 1 11
(x₁ - x)² 0 4 16 36 16

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