Question

3.
Find the mode of the following distribution:
Marks :
Number of Students :
0-10
4
10-20
6
20-30
7
30-40
12
40-50
5
50-60
6​

Answer 1

Answer:

Mode is the one which has the highest frequency

Here the class 30−40 has the highest frequency 16

Modal class is 30−40

Lower boundary of modal class is l=30

Height of each class is h=10−0=10

modal frequency is f

m

=16

Frequency of class preceding to Modal class is f

1

=10

Frequency of class succeeding to Modal class is f

2

=12

Mode =l+h(

2f

m

−f

1

−f

2

f

m

−f

1

)=30+10×

32−10−12

16−10

=30+6=36

Step-by-step explanation:

Answer 2

Step-by-step explanation:

this is the correct answer