2013 · Q98
If m is the mean of p,q,r,s,t,u,v, then (p−m)+(q−m)+(r−m)+(s−m)+(t−m)+(u−m)+(v−m) equals
Elementary MathematicsStatistics
- A0
- Bm
- C(p+v)/2
- DNone of the above
Explanation
Sum of deviations from mean = 0. (Source OCR duplicated (u−m); read as (v−m).) Answer A.