Question

Which is modal class of following table :
Class Interval 14-18 18–22 22–26
Frequency
11 16 25
26-30
19
​

Answer 1

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Answer 2

Answer:

Modal Class = 22 - 26

Mode = 24.4

Step-by-step explanation:

Class interval    Frequency

14 - 18                11

18 - 22               16

22 - 26              25

26 - 30               19

Modal Class is the class which has highest frequency

& in 11  , 16 , 25  & 19

25 is Maximum

so Highest frequency = 25

25 frequency belongs to class 22 - 26

Hence Modal Class = 22 - 26

Estimated Mode = 22  +  4 * (25 - 16) /(( 25 - 16) + (25 - 19) )

= 22 + 4 * 9 /15

= 22 + 2.4

= 24.4

Estimated Mode = 24.4