The following question contains a question and two statements giving certain information. Decide whether the information given in statements are sufficient for answering the question.
Does TV viewing affect the performance of students?
- The number of failures in class XII is more this year.
- TV watching is harmful to the eyes.
if the statement I alone sufficient to answer.
if statement II alone is needed.
if both statements I and II are needed.
if both statements I and II are not sufficient to answer the question.
Neither of the statement I and II contains sufficient data to answer the question. The failure could be because of other factors like bad teachers. If TV watching is harmful to the eyes then it doesn't prove that it affects the performance of students.