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Question

Draw an ogive on the graph paper after calculating the cumulative frequency (less than type) of the following data:

Class Interval Frequency
0 – 10 1
10 – 20 5
20 – 30 15
30 – 40 20
40 – 50 15
50 – 60 6
60 – 70 1
WBBSE Class X Mathematics Statistics 04 Mark 2025

Answer

Class Interval Frequency CF
0 – 10 1 1
10 – 20 5 6
20 – 30 15 21
30 – 40 20 41
40 – 50 15 56
50 – 60 6 62
60 – 70 1 63

 

Draw an ogive on the graph paper after calculating the cumulative frequency (less than type) of the following data

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