This is not an actual test its a practice. I need help with understadning the problem.

Take a Test - Bhavitha Datla - Google Chrome 0 X mathxl.com/Student/PlayerTest.aspx?testld=213401383&centerwin=yes MTH245-071M SPRING 2020 Bhavitha Datla & | 04/02/20 2:41 PM Test: Chapter 1 Test Submit Test This Question: 1 pt 1 of 10 This Test: 10 pts possible A poll of about 1300 people between the ages of 18 and 29 asked "How concerned are you about the problem of climate change?" The possible responses were very concerned, somewhat concerned, not very concerned, and haven't heard about it. The poll reported percentages (43, 31, 19, 8) in these categories. Complete parts a and b below. a. Identify the sample and the population. Choose the correct answer below. O A. The sample is the set of 1300 people that were polled, while the population is the set of all people. O B. The sample is the set of all people between the ages of 18 and 29 who are concerned about climate change, while the population is the set of all people between the ages of 18 and 29. O C. The sample is the set of 1300 people that were polled, while the population is the set of all people between the ages of 18 and 29. O D. The sample is the set of people between the ages of 18 and 29, while the population is the set of all people. b. Are the percentages quoted statistics or parameters? Why? O A. The percentages quoted are statistics because they represent all of the possible responses to the poll question. O B. The percentages quoted are parameters because they are a numerical summary of the entire population. O C. The percentages quoted are statistics because they are a numerical summary of a sample taken from a population. O D. The percentages quoted are parameters because they can be used to make decisions or predictions about a population. Click to select your answer. ? Save for Later