aruch College Statistics 2000 Midterm1 Professor Alvarado-De Jesus Which of the
ID: 3368726 • Letter: A
Question
aruch College Statistics 2000 Midterm1 Professor Alvarado-De Jesus Which of the following is most likely a population as opposed to a a) respondents to a newspaper survey b) the first 5 students completing an assignment 7. Spring 2018. Page 2 every third person to arrive at the bank d) registered voters in a county Which of the following a) the average score of the first five students completing an assignmert 8. is most likely a parameter as opposed to a statistic? b) the proportion of females registered to vote in a county the proportion of trucks stopped yesterday that were cited for bad brakes 9. Which of the 4 methods of data collection is involved when a person counts the number of cars passing designated locations on the Los Angeles freeway system? a) published sources b) experimentation c), surveying observation 10.To monitor campus secunity,the campus police department is taking a survey of the number of students in a parking lot during each 30 minutes of a 24-hour period, with the goal of determining when patrols of the lot would serve the most students. If X is the number of students in the lot during each period of time, then X is an example of a) a categorical random variable a discrete random variable c) a continuous random variable d) a statistic 11. Researchers are concermed that the weight of the average American school child is increasing implying, among other things, that children's clothing should be manufactured and marketed in larger sizes. If X is the weight of school children sampled in a nationwide study, then X is an example of a) a categorical random variable a discrete random variable a continuous random variable d) a parameter 12. The classification of student class designation (freshman, sophomore, etc) is an example of a) a categorical random variable b) a discrete random variable c) a continuous random variable d) a parameterExplanation / Answer
7. => d), voters in a country is a whole population
8. => b), population parameter means some characteristics of a population. The voter in a country is population and the proportion of female is a parameter of the population/
9. => c), here is taking observations but the process he is doing is known as surveying.
10. => b)
11. => c)
12. => a), as these are the categories.
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