Question

find mode 0-10,10-20,20-30,30-40, frequency 2,3 ,5,2​

Answer 1

Step-by-step explanation:

The maximum frequency is 15 and the class interval corresponding to this frequency is 20 – 30. Thus, the modal class is 20 – 30.

Lower limit of the modal class (l) = 10

Size of the class interval (h) = 10

Frequency of the modal (f1) = 5

Frequency of the preceding the modal (f0) = 2

Frequency of the class succeeding the modal class (f2)= 3

Substituting these values in the formula we get;

mode=l+(f1-fo/2f1-fo-f2)h

mode=16