यदि एक जनसंख्या का मानक वि� – McqOptions

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1.	यदि एक जनसंख्या का मानक विचलन 9.5 है, तो इसका प्रसरण क्या होगा -
A.	19
B.	90.25
C.	81.25
D.	93. 25
Answer» C. 81.25

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