Question

calculate C.V for the following frequency distribution C.I 4-8 8-12 12-16 16-20 20-24 24-28 28-32. 32-36 36-40 F 11 13 16 14 10 9 17 6 4​

Answer 1

Step-by-step explanation:

Here, the maximum frequency is 17 and the corresponding class is 12−16. So, 12−16 is the modal class. 

We have,

l=12,h=4,f=17,f1=9 and f2=12

∴Mode=l+2f−f1−f2f−f1×h

⇒Mode=12+34−9−1217−9×4

⇒Mode=12+138×4=12+1332=12+2.4=14.4

Answer 2

Step-by-step explanation:

Answer

Open in answr app

Here, the maximum frequency is 17 and the corresponding class is 12−16. So, 12−16 is the modal class. 

We have,

l=12,h=4,f=17,f1=9 and f2=12

∴Mode=l+2f−f1−f2f−f1×h

⇒Mode=12+34−9−1217−9×4

⇒Mode=12+138×4=12+1332=12+2.4=14.4