1.

Find mode if l1=10, l2=16, f0=20, f1=30 and f2=1012181614​

Answer»

Step-by-step explanation:

Here maximum frequency is 20 ,the CLASS corresponding to this 30-40

So MODAL class is 30-40

Now lower LIMIT of modal class (l)=30

Frequency (f1) of modal class =20

frequency (F0) of PRECEDING the modal class =12

frequency (f2) of the class succeeding the modal class=11

Class size=10

Mod=l+[

2f1−f0−f2

f1−f0

]×h

Mod =30+[

2×20−12−11

20−12

]×10=30+

17

8

×10=30+4.705=34.705


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