Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Quantitative Aptitude Elementary Statistics
Determine the mean deviation about the mean for the following data:
70, 45, 56, 86, 20, 25, 38, 42, 63, 45
1
19.5
2
15.8
3
25.5
4
More than one of the above
5
None of the above