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Find coefficient of decile deviation {{10,3},{11,12},{12,18},{13,12},{14,3}} [ Calculator, Method and examples ]

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Your problem -> coefficient of decile deviation {{10,3},{11,12},{12,18},{13,12},{14,3}}

Decile deviation :
 x Frequencyf cf 10 3 3 11 12 15 12 18 33 13 12 45 14 3 48 --- --- --- n = 48 --

Here, n = 48

D_1 = ((n+1)/10)^(th) value of the observation

=(49/10)^(th) value of the observation

=(4.9)^(th) value of the observation

=11

D_9 = ((9(n+1))/10)^(th) value of the observation

=((9*49)/10)^(th) value of the observation

=(44.1)^(th) value of the observation

=13

Decile deviation =(D_9 - D_1)/2=(13-11)/2=2/2=1

Coefficient of Decile deviation =(D_9 - D_1)/(D_9 + D_1)=(13-11)/(13+11)=2/24=0.0833

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