Question

23.Find the mode from the following frequency distribution:
Class Interal Frequency
class frequency
interval
0-10 2

10 - 20 5

20-30 7

30 - 40 5

40 - 50 2
​

Answer 1

Step-by-step explanation:

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−f2

f1−f0

]×h

Mod =30+[

2×20−12−11

20−12

]×10=30+

17

8

×10=30+4.705=34.705

Answer 2

Answer:

above answer is right

Step-by-step explanation:

please mark me as