Question

find mode class= 0-10,10-20,20-30,30-40,40-50,50-60. f= 7,14,13,15,20,11​

Answer 1

Answer:

20 20 20 is mode

plz inbox me plz your answer is finished than plz inbox me

ok

Answer 2

Answer:

Class intervals                       Frequency

    10-20                                       7

    20-30                                     12

    30-40                                     20

    40-50                                      11

   50-60                                        8

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−f2f1−f0]×h

Mod =30+[2×20−12−1120−12]×10=30+178×10=30+4.705=34.705