The Decile Formula For Single Data

Decil

Desil is the point or value that divides all data into 10 equal parts. Desil serves to determine the value of each 10 percent limit in the distribution in question. Here is the decile formula for a single data:

The Decile Formula for Single Data

Location D_i = Location of data (i(n + 1) / 10)

Information:

D = Decile
n = Number of data
i = 1,2, ..., 9 

Example :

Please determine the 1st decile of the data 1,2,3,4,5, ... , 99 !

Answer :

i = 8

n = 10

Location D_i = Location of data (i(n + 1) / 10)

Location D₁ = Location of data (1(99 + 1) / 10)

Location D₁ = Location of data (1(100) / 10)

Location D₁ = Location of data (100/ 10)

Location D₁ = Location of data (10)

Location D₁ = 10

So the 1st decile of data 1,2,3,4,5, ... , 99 is 10.

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Reference :

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