Calculate the median from the following data
marks .
IS THIS QUESTION EVEN CORRECT????
CLASS 10 MATERIAL
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I tried solving it but I didn't really know the height of the classes so I assumed it was 20. I'm not sure if it's right. just trying to help. sorry
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Answer:
1st calculate C. F. as given below :
Class Fi. C. F.
0-10 5 5
10-30 15 20
30-60 30 50 -------->median class
60-80 8 58
80-90 2 60
Here N=60.
--> N/2=30
Hence the median class will be 30-60.
Now,l=30; N/2=30; C. F=20; h=30.
Median =l+(N/2-C.f/F) *h
=30+(30-20/30)*20
=30+(10/30)*20
=30+200/30
=30+6.67
=36.67
Therefore, the median of the data is 36.67
Hope this helps you.
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