state gov MP Vyapam Group 4 (AG III & Steno) Mock Test Series 2025 Quantitative Aptitude Elementary Statistics
The sum of deviations of a set of observations, x1, x2, ...., xn measured from 50 is -10 and the sum of deviations from 46 is 70, then the number of observations is
1
40
2
30
3
20
4
10