Q. 74.6( 9 Votes )

The distribution below gives the weights of 30 students of a class. Find the median weight of the students.


Answer :


For median:


We have, total frequency, N = 30


N/2 = 30/2 = 15


Observe, cf = 19 is just greater than 15.


Thus, median class = 55-60


Median is given by



Where,


L = Lower class limit of median class = 55


N/2 = 15


cf = cumulative frequency of the class preceding median class = 13


f = frequency of the median class = 6


h = class interval of the median class = 5


Substituting these values in the formula of median, we get




Median = 55 + 1.67


Median = 56.67


Thus, the median is 56.67 kg.


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
caricature
view all courses