Best answer gets

bill and lisa are surveying their classmates about their summer reading. their questions are given below:

bill: how many books were recommended by the book reading club for summer?
lisa: which was your favorite book from the book reading club's recommendation?

who wrote a statistical question and why?

bill, because there will be variability in the responses collected
lisa, because there can be only one answer to the question
bill, because every student will give the same answer
lisa, because there can be many answers to the question