CBSE Class 7 Answered
Given is a table representing marks obtained by 40 students in an examination: 
State the class intervals, class size and the class mark.
State the class intervals, class size and the class mark.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Each of the groups 0-5, 5-10, 10-15, 15-20 and 20-25 are called class intervals.
The class size = upper limit - lower limit (of any class interval)
Thus, the class size of the given frequency distribution is 5.
The class size = upper limit - lower limit (of any class interval)
Thus, the class size of the given frequency distribution is 5.
Answered by | 04 Jun, 2014, 03:23: PM
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