The correct answer to the question above would be the event horizon. The event horizon is the area beyond a black hole, where the black hole has stopped expanding and matter will no long be pulled in.
a) No, because the researcher did not measure what he claimed to measure (the relationship between cancer and stress levels)
b) Yes, because the researcher changed his focus based on valid responses from participants
c) Yes, because the researcher did have a result in the end that showed there was some relationship between two variables.
d) No, because a relationship between variables can only be determined by an experiment
Answer:
quantity supplied
Explanation:
Because businesses seek to increase revenue, when they expect to receive a higher price for something, they will produce more of it.