Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Mathematics Statistics Measures of Central Tendency
Which one of the following equations represents a true mathematical characteristics of mean ?
1
Σ(X − X̅) = minimum
2
Σ(X − X̅) = 0
3
Σ(X − X̅) = mxmimum
4
Σ(X − X̅) = infinite