Deciles

7

8

9

10

 $D_k=\frac{n\ \left(k+1\right)}{10}$  

 $D_n=\frac{k\ \left(n+1\right)}{10}$  

 $D_k=\frac{k\ \left(n+1\right)}{10}$  

 $D_n=\frac{n\ \left(k+1\right)}{10}$  

 $n^{th}$  decile

number of data

 $n^{th}$  percentile

number of deciles

$D_3$

$D_4$

$D_5$

$D_6$

Find its position using the given formula

Interpret the result

Arrange the data in ascending order

Identify the value of k and n

8% of the values fall below  $D_8$  

80% of the values fall above  $D_8$  

8% of the values fall above  $D_8$  

80% of the values fall below  $D_8$  

Linear Interplotation

Linear Interpolation

Linear Interplation

Linear Intertion

8

9

13

15

3

3.2

25.8

26

3

3.2

25.8

26