Question

Find the value of the mode from the following data
class. frequency
0-10. 8
10-20. 12
20-30. 14
30-40. 16
40-50. 20
50-60. 22
60-70. 28
70-80. 17
80-90. 14
90-100. 10

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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

Answer 2

Answer:

1) 10-2=8

all is these and ans is longer