Question

If mode of data is 39 find the
value of f
Class 5-15
frequency / 2
15-25 25-35 35-45 | 45-53
3
f 4 나 4
55-65 65-75
2
2​

Answer 1

Answer:

36.81

Step-by-step explanation:

The class 35-45 has maximum frequency. Therefore, this is the modal class.

l=35,h=‘10,f=23,f

1

=21,f

2

=14

Therefore,

Mode = l+

2f−f

1

−f

2

f−f

1

×h

=35+

46−21−14

23−21

×10

=35+

11

2

×10

=35+

11

20

=36.81(ans)