Q. 13

Find the median from the following table:

Answer :

Here, we can see that the intervals are unequal.

Firstly, we convert the unequal class intervals into equal class intervals.

We have n = 80


The cumulative Frequency just greater than is 45 then the median class is 12-18 such that

the lower limit (l) = 12

cumulative frequency of the class preceding 12 – 18 (cf) = 17

frequency of the median class 12 – 18 = 28,

class size (h) = 6

Using the formula,,we have

= 12 + 4.928

= 14.93

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
NCERT | Important Questions of StatisticsNCERT | Important Questions of StatisticsNCERT | Important Questions of Statistics44 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses