Q. 44.4( 184 Votes )

The lengths of 40 leaves of a plant are measured correct to the nearest milli meter, and the data obtained is represented in the following table:


Find the median length of the leaves

(Hint: The data needs to be converted to continuous classes for finding the median, since the formula assumes continuous classes. The classes then change to117.5 - 126.5, 126.5 - 135.5, . . ., 171.5 - 180.5)

Answer :

The cumulative frequency of the data can be calculated as:

As per the question,


N= 40



Hence,


Median class =144.5-153.5


Lower limit, l = 144.5


cf = 17


f = 12


h = 9


Now,


Median can be calculated as:




= 144.5 +


= 146.75

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