For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abscissae respectively:
(a) upper limits of the classes
(b) lower limits of the classes
(c) class marks of the class
(d) upper limits of preceding classes
Solution:
(c) class marks of the class is correct
The median of the data 78, 56, 22, 34, 45, 54, 39, 68, 54, 84 is
Solution:
54 is correct
In a data, 10 numbers are arranged in ascending order. If the 8th entry is increased by…………..
Solution:
0 is correct
More Solutions:
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- Draw a histogram for the following data:
- Draw a frequency polygon for the following data:
- The marks obtained in a weekly test were as under:
- In a city, the weekly observations made in a study.