Skip to ContentGo to accessibility pageKeyboard shortcuts menu
OpenStax Logo
Introductory Statistics 2e

1.5 Data Collection Experiment

Introductory Statistics 2e1.5 Data Collection Experiment

Stats Lab

Data Collection Experiment

Class Time:

Names:

Student Learning Outcomes
  • The student will demonstrate the systematic sampling technique.
  • The student will construct relative frequency tables.
  • The student will interpret results and their differences from different data groupings.

Movie SurveyAsk five classmates from a different class how many movies they saw at the theater last month. Do not include rented movies.

  1. Record the data.
  2. In class, randomly pick one person. On the class list, mark that person’s name. Move down four names on the class list. Mark that person’s name. Continue doing this until you have marked 12 names. You may need to go back to the start of the list. For each marked name record the five data values. You now have a total of 60 data values.
  3. For each name marked, record the data.
    Table 1.18

Order the DataComplete the two relative frequency tables below using your class data.

Number of Movies Frequency Relative Frequency Cumulative Relative Frequency
0
1
2
3
4
5
6
7+
Table 1.19 Frequency of Number of Movies Viewed
Number of Movies Frequency Relative Frequency Cumulative Relative Frequency
0–1
2–3
4–5
6–7+
Table 1.20 Frequency of Number of Movies Viewed
  1. Using the tables, find the percent of data that is at most two. Which table did you use and why?
  2. Using the tables, find the percent of data that is at most three. Which table did you use and why?
  3. Using the tables, find the percent of data that is more than two. Which table did you use and why?
  4. Using the tables, find the percent of data that is more than three. Which table did you use and why?
Discussion Questions
  1. Is one of the tables “more correct” than the other? Why or why not?
  2. In general, how could you group the data differently? Are there any advantages to either way of grouping the data?
  3. Why did you switch between tables, if you did, when answering the question above?
PreviousNext
Order a print copy
Citation/Attribution

This book may not be used in the training of large language models or otherwise be ingested into large language models or generative AI offerings without OpenStax's permission.

Want to cite, share, or modify this book? This book uses the Creative Commons Attribution License and you must attribute OpenStax.

Attribution information
  • If you are redistributing all or part of this book in a print format, then you must include on every physical page the following attribution:
    Access for free at https://openstax.org/books/introductory-statistics-2e/pages/1-introduction
  • If you are redistributing all or part of this book in a digital format, then you must include on every digital page view the following attribution:
    Access for free at https://openstax.org/books/introductory-statistics-2e/pages/1-introduction
Citation information

© Jul 18, 2024 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo are not subject to the Creative Commons license and may not be reproduced without the prior and express written consent of Rice University.