A teacher showed an educational film on nutrition to one group of students, gave a handout on the same material to another group, and then tested each group on their knowledge of the material. The purpose was to determine which method of instruction was more effective. n this experiment, what is the dependent variable? the test results 1.the film 2. the handout 3. the film 4. the handout

Which of the following describes one of the ways that the demographics of an area affect the price of housing in that area? a. when more people have children, their incomes tend to be higher and the housing prices are also higher. b. older people are more likely to stay in their houses, creating a seller's market that keeps prices low. c. an area with a lower population density won't have enough construction workers to build new houses quickly. d. an area with younger people will have a higher demand for rentals and a lower demand for buying.