Question: The table below has question wise data on the performance of students, in an examination. The mark for each questions are also listed. There

The table below has question wise data on the performance of students,

The table below has question wise data on the performance of students, in an examination. The mark for each questions are also listed. There is no negative or partial marking in the exam. Q.No. Marks Answered correctly Answered wrongly Not attempted 1. 2 2. 3 3. 2 21 15 23 17 27 18 What is the average of the marks obtained by the class in the examination 6 2 3

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