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CBSE Class 10 Standard Math 2025 All Sets Solved Paper

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Question : 8 of 20
Marks: +1, -0
Following data shows the marks obtained by 100 students in a class test:
Mark obtained2029283342384325
Number of students628241524120
The median will be the average of which two observations?
Solution:  
Mark obtainedNumber of studentsCumulative frequency
2066
252026
282450
292878
331593
38497
42299
431100
Here n = 100, which is even
∴ Median will be the average of 50th50^{th} and 51th51^{th} observations.
50th50^{th} observations is 28.
51th51^{th} observations is 29.
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