The marks scored by 13 students are given as: 6,7,3,7,6,9,4,6,10,4,6,8,9. What is the frequency of students who scored at least 7 marks?

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Solution

The correct option is B 6
Arranging the data in ascending order

3,4,4,6,6,6,6,7,7,9,10,8,9

Using the word atleast indicates that we should also consider the students who have scored 7.

So, Number of students who scored atleast 7 marks (3,4,4,6,6,6,6,7,7,9,10,8,9) is 9

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