Calculate coefficient of variation of the following series:
S.No.12345678910Marks53582530544232484652
S. NoMarks (X)Deviation from meanSquare of deviations(x=X−¯¯¯¯¯X) Where ¯¯¯¯¯X=44(X−¯¯¯¯¯X)2 or x215398125814196325−19361430−1419655410100642−24732−12144848416946241052864N=10∑X=440∑x2=1166
¯¯¯¯¯X=∑XN=44010=44σX=√∑x2N=√116610=√116.6=10.8C.V.=σX¯¯¯¯X×100=10.844×100=24.54