Take notes as you study.
Always re-read anything that seems to confuse you at all.
Think about the end points and the start points of anything you're trying to learn. (Helps with memorizing)
~mathnerdz
14. his mass will not change.
Answer:
They originally sold candy corn under the name "Chicken Feed"
Answer: B) Yes, especially if the people who are on a do dash not dash call registry have a trait that is not accurately represented by the remaining people in the sample
If the person conducting the survey wants a good random sample then they should take opinions from a broad audience, including people from different backgrounds, races, ages, cultures etc. In this case, the people that are not on the call registry most likely have a common trait that would explain why they're not in there (ie. they're too young to be eligible to be in the call registry, they are too old to be on the call registry, etc). Not calling them then would throw off the sample. Because of this, B is the correct answer.