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Question 22
In an examination the grades achieved by 30 students fo a class are B,C,C,E,A, C,B, B, D,D,D,D,B,C,C, C, A, C,B,E,A,D,C,B,E,C,B,E,C,D. Create a frequency table.


Solution

In order to deduce any information from the given data, we will arrange the given data in a table, using tally marks.We use the repetitions to construct a tally table as shown below.The number 1 is represented as I. The number 2 is represented as II and so on. But number 5 is represented as  

Table with tally marks from the given information is shown below:


Mathematics
NCERT Exemplar
Standard VI

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