how to find the class size and class interval when the class marks are given.pls tell fast....

 to find class size :upper limit -lower limit

to find class int: upper class limit +lower class limit /2

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Class mark of distribution are 10,14,18,23 .determine class size and class limits.
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to find class size :upper limit -lower limit to find class int: upper class limit +lower class limit /2
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