Question

Students from School A and School B were asked whether they watch TV or use the Internet after finishing their homework. The Venn diagram and the two-way table show the results from the two surveys. Which statement is true?
More students do both activities at A than at B.
More students watch TV at B than at A.
More students do neither activity at B than at A.
More students were surveyed at A than at B.

Answer 1

(A) From the Venn diagram and the two-way table, the number of students who do both are 26 and 30, respectively. This opposes the first choice. 

(B) The number of students who watch TV at A is 26+12 = 38. In School B is 30+5 = 35. This negates the second choice.

(C) The number of students who does neither of the activities in A is 3 and 4 in B, the third choice is TRUE.

(D) The number of students surveyed in A is 9+26+12+ 3 = 50. This is the same number as that of B. Statement D is also untrue.

Thus, the answer to this item is letter C. 

Answer 2

Answer:

C. More students do neither activity at B than at A.