Question

Calculate p15 for following data

Answer 1

Answer:

write first full question

Answer 2

Answer:

Explanation:

P15=15n/100

15 × 100/100

= 15

15th observation lies in cf 15

Hence the percentile class = 10-20

l=10,f=10,cf=5,n=100,h=10

P15= l+ (10n/100-cf/f)× h

= 10+(10×100/100-5/10)×10

=10+(10-5/10)×10

=10+(5/10×10)

=10+5

=15

P15 = 15