- Construction of histogram of different class intervals
A histogram is a graphical representation of grouped data.
Represent the given data in the form of a histogram.
|Marks||0 – 20||20 – 30||30 – 50||50 – 60|
|Number of students||10||13||16||11|
Here, the minimum class size is 10.
Thus, we can find the adjusted frequencies using the following formula,
|Marks||Number of students||Class size||Adjusted frequency|
|0 – 20||10||20|
|20 – 30||13||10|
|30 – 50||16||20|
|50 – 60||11||10|
The histogram of the given data can be drawn as follows:
- Interpretation of histograms
The interpretation of data represented by a histogram can be done by looking at it.
The following histogram shows the production of food grains (in thousand tonnes) over a period …
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