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formula :-

INDIVIDUAL AND DISCRETE SERIES

1) P1 = 1

2) P2 = 2 × (N+1/100) th term

3) P3 = 3 ×

4) P4 = 4 ×

5) P99 = 99

CONTINUOUS SERIES

1) P1 = L1 + (p1 - C / F) × i ( p1-c / f

2) P2 = L1 + (p2 - C / F) × i

3) P3 = L1 + (p3 - C / F) × i

4) P4 = L1 + (p4 - C / F) × i

EXAMPLE :-

QUE ;- Calculate the 10th term percentile from the following data .

C.I :- 33,22,55,47,21,68,49,40,33,38,42,48,52,37

SOLUTION :-

firstly we have to arrange that data into ascending order so the order is,

21,22,33,33,37,38,40,42,47,48,49,52,55,68

S.NO :- 1,2,3,4,5,6,7,8,9,10,11,12,13,14

C.I :- 21,22,33,33,37,38,40,42,47,48,49,52,55,68

NOW, we have to calculate 10th percentile so

N = 14

P10 = 10 ×

on solving them 10/100 = 10 so (15/10) th term

= 15/10 th term

on solving them we get answer 1.5

now, P1.5 = 1st term + .5 ( 2nd term - 1st term )

P1.5 = 21 + .5 (22-21)

P1.5 = 21.5 ANSWER

Hope it will help you

thank you