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

यदि जनसंख्या का मानक विचलन 10 है, तो जनसंख्या विचरण क्या होगा?

A. 100

B. 30

C. 5

D. 20

1
D
2
B
3
A
4
C
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