The observations are given that 11, 12, 14, 15, 17, 18 so what is the value of variance for observation 12?

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Q. The observations are given that 11, 12, 14, 15, 17, 18 so what is the value of variance for observation 12?

(A) 0
(B) -2.5
(C) 2.5
(D) None of the above

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✅ Correct Answer: (B) -2.5

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