Incorrect Question 7 0 / 1 pts 7. Which of these is an advantage of using systematic sampling instead of a simple random sample? Systematic samples do not require any use of random selection. Systematic samples are often easier to carry out than simple random samples, Systematic samples have less variability than simple random samples. Simple random samples are often biased, but systematic samples are not.D Question 10 2 pts 9. Consider the survey methods and questions below. What concerns do you have about each method? Explain your answer briefly, and determine the type of the possible bias for each method. 9(a) At the Golden State Warriors playoff game, a random survey was taken by asking the question: "What is your favorite sport?" 9(b) A random sample of students in the school band was asked "Should the school put more money into the athletic program or the music program?"