railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Elementary Statistics

यदि माध्य 40 है और मानक विचलन 5 है तो C.V (विचरण गुणांक) है:

1
20%
2
12.5%
3
100%
4
5%
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