if there is even observations how to find the median?????

e.g. The marks of 10 students (out of 20) are given as 18, 14, 7, 12, 4, 19, 17, 15, 15, 12,  What is the median of the marks

 

 

e.g 10 students scored 12,14,15,17,11,10,20,13,17,15 out of 20. what would be the median ?

Hi!
 
Your question is not clear to us. If you are giving the marks scored by 10 students of each group, then it can be solved further as:
 
Arranging the marks scored by the students in the first  group in increasing order we have;
4, 7, 12, 12, 14, 15, 15, 17, 18, 19
There are 10 observations. Thus, the median mark scored by the students of the first group is half of sum of 5th and 6th observations = (14 + 15)/2 = 29/2 = 14.5 marks
 
Arranging the marks scored by the students in the second group in increasing order we have;
10, 11, 12, 13, 14, 15, 15, 17, 17, 20
There are 10 observations. Thus, the median mark scored by the students of the second group is half of sum of 5th and 6th observations = (14 + 15)/2 = 29/2 = 14.5 marks
 
If you consider the two groups as one group, then the marks scored by the 20 students can be arranged in ascending order as:
4, 7, 10, 11, 12, 12, 12, 13, 14, 14, 15, 15, 15, 15, 17, 17, 17, 18, 19 and 20
 
There are 20 observations. Thus, the median mark scored by the students of the second group is half of sum of 10th and 11th observations = (14 + 15)/2 = 29/2 = 14.5 marks
 
Hope! This will help you.
Cheers!

  • 3

Hi

e.g 10 students scored 12,14,15,17,11,10,20,13,17,15 out of 20. what would be the median ?

The median would be first we will add the fifth and the sixth number and take out the mean of it

i.e 11+10/2 = 22/2 = 11

The median is 11

Cheers

  • 1

Thanks sir,

Now it is clear

  • 0
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