Question

Find the mode of the following frequency distribution:
class 0-15 15-30 30 - 45 45-60 60 - 75
Frequency
4,5,23,45,66,42,15​

Answer 1

Answer:

We have: 38 + p + q = 51

p + q = 51 - 38

p + q = 13…(1)

 

Mode = 55(Given)

Modal Class is 45 - 60

= 45, f0 = p, f1 = 15, f2 = 10, h = 15

55 = 45 +  

10 =  

200 - 10p = 225 - 15p

5p = 25

p = 5

From (1), we have:

q = 13 - 5 = 8