the mark obtained by pupils of a class are grouped as shown below 0-4,5-9,10-14,15-19 the class width is?
The difference between the lower boundaries of adjacent classes.
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To calculate the class width, you need to find the difference between the upper class limit and the lower class limit of any class interval.
In the given data, the class intervals are as follows:
0-4
5-9
10-14
15-19
To find the class width, we will consider the first class interval 0-4.
The lower class limit of the first interval is 0, and the upper class limit is 4.
To find the class width, subtract the lower class limit from the upper class limit:
4 - 0 = 4
Therefore, the class width for the given data is 4.