Quiz 1_Math302.docx

Quiz 1_Math302.docx - Question 1 of 20 0.0 1.0 Points What...

• Test Prep
• 12

This preview shows page 1 - 5 out of 12 pages.

Question 1 of 20 0.0/ 1.0 Points What type of sampling is being employed if the population is divided into economic classes and a sample is chosen from each economic class to be surveyed? A. systematic sampling B. cluster sampling C. random sampling D. stratified sampling Answer Key: D Question 2 of 20 1.0/ 1.0 Points Boxplots are most useful for. A. comparing two populations graphically B. calculating the median of the data

Subscribe to view the full document.

C. comparing the mean to the median D. calculating the mean of the data Answer Key: A Question 3 of 20 1.0/ 1.0 Points A time series plot is essentially a: A. diagram B. figure C. histogram D. Scatterplot Answer Key: D Question 4 of 20 1.0/ 1.0 Points
A variable is classified as ordinal if: A. there is a natural ordering of categories B. we track the variable through a period of time C. there is no natural ordering of categories D. the data arise from continuous measurements Answer Key: A Question 5 of 20 1.0/ 1.0 Points Which of the following correctly describes the relationship between a sample and a population? A. A population and a sample are not related. B. A sample is a group of subjects selected from a population to be studied.

Subscribe to view the full document.

C. A sample is a group of populations that are subject to observation. D. A population is a group of samples that may or may not be included in a study Answer Key: B Question 6 of 20 1.0/ 1.0 Points For a boxplot, the box itself represents what percent of the observations?
• Spring '15

{[ snackBarMessage ]}

What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern