The upper limit of the median class in the given below data is ________
Class 20 – 30 30 – 40 40 – 50 50 – 60 60 – 70 70 – 80 80 – 90
Frequency 25 15 10 6 24 12 8
Answers
Upper limit of median class is 50.
Step-by-step explanation:
We are given the following frequency distribution below;
Classes Frequency (f) Cumulative frequency (cf)
20 - 30 25 25
30 - 40 15 40
40 - 50 10 50
50 - 60 6 56
60 - 70 24 80
70 - 80 12 92
80 - 90 8 100
= 100
Firstly, we will calculate , (where N = ), = = 50.
So, the value of cumulative frequency just greater than or equal to 50 is 50 only.
The corresponding class interval with 50 as cf is 40 - 50.
Therefore, median class is 40 - 50 and the upper limit of this median class is 50.