The marks scored by 13 students are given as: 6,7,3,7,6,9,4,6,10,4,6,8,9. If the pass mark is 4, how many students failed?

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Solution

The correct option is C 1
Arranging the data in ascending order

3,4,4,6,6,6,6,7,7,9,10,8,9
Only 1 student has scord less that 4
Therefore, the number of students who have failed is 1

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