() Checkpoint: \"Collecting Data- e Checkpoint-Collecting Data-X which of the fo
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() Checkpoint: "Collecting Data- e Checkpoint-Collecting Data-X which of the foll x) tps:/oli.cmu.edu/course/assessment2/activityjattempt/view.do?attempt-1&context; 15148821 0a0001dct Course Materials Sign in to your Micro The essay i will emai." Question 1 Select one answer. Which of the following is an example of a census? 10 points A.Poll students at a college by including a pop-up window in the online registration form. Students have to answer the survey questions before they can register. Try to catch the remaining students at the admissions window when they register in person. Weigh every child at an elementary school for a study of physical fitness at the school. B. C. Survey parents whose children attend a local elementary school by randomly selecting 50 parents from the school's records. D. The U.S. Population Census Question 2 final exam MacBook Ai ” 0 F3 . F6 44F7 3 4Explanation / Answer
question 3
we simply need to find the students who took first math class for atleast 1 year
hence choice A is wrong , as the list would also include students who have not taken the maths class, hence it will not be a correct representation of the population
C , This would be a case of concvinince sampling as we are going to canfetria and then selecting students , what is math students do nt even show up . also , students from different classes would come to the cafeteria too
d
here the survey size would be too large and also what if 10 math classes taht we select have all students that have not delayed the first math class
Hence the correct choice is B
we can work with the math instructor to get the list of all the math students and then randomly pick 200 students to see the proportion of students who took math and also delayed the first math class by atleast 1 year
Please note that we can answer only 1 question at a time , as per the guidelines
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