Class 9 Maths Statistics Presentation of Data

Presentation of Data

If you Collect the score of 6 students in your class & note it, it will be similar to table on the left.

But this is not the best way to represent data, it is raw form. It is difficult to find lowest & highest score using table on the left. You have to scan through all data to find lowest & highest score.

 

 Let’s arrange this data (ascending order of score) in the table on right. Now it is pretty easy to find the highest & lowest score.  Score in 1st row is the lowest & score in last row is the highest.

 

The difference of the highest and the lowest values in the data is called the range of the

data. So, the range in this case is 95 – 35 = 60.

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