This question was asked in 2011′s GS (Mains) Paper II.
- Draw an ogive for the following distribution.
- Read the median from the graph.
- How many students get between 60 and 72?
Marks | No. of Students |
50-55 | 6 |
55-60 | 10 |
60-65 | 22 |
65-70 | 30 |
70-75 | 16 |
75-80 | 12 |
80-100 | 15 |
Explanation in this Youtube video:http://www.youtube.com/watch?v=egG3JBTzW3Q
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