Mathematics · Statistics
The variance of a set of values x1, x2, ..., xn is given by which of the following formulae?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1( ∑ x )2n2
- 2( ∑ x )2n2 - ∑ x2n
- 3∑ x2n - ∑ xn
- 4∑ x2n - ( ∑ x )2n2✓
Correct answer
∑ x2n - ( ∑ x )2n2
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