As part of an assignment, students were asked to poll people to find out what they enjoy as a hobby. Mark asked only the people walking out of a bookstore, and his results found that 92% of the people enjoy reading. What is wrong with the validity of Mark's results?
A. The results are likely to be invalid because not enough people were polled.
B. The results are invalid because Mark did not collect enough information on their hobbies.
C. The results are likely to be biased by the fact that Mark only asked people walking out of a bookstore, who are most likely going to enjoy reading

Question

As part of an assignment, students were asked to poll people to find out what they enjoy as a hobby. Mark asked only the people walking out of a bookstore, and his results found that 92% of the people enjoy reading. What is wrong with the validity of Mark's results?
	A.  	The results are likely to be invalid because not enough people were polled.
	B.  	The results are invalid because Mark did not collect enough information on their hobbies.
	C.  	The results are likely to be biased by the fact that Mark only asked people walking out of a bookstore, who are most likely going to enjoy reading

anonymous · Answer

ok thx