ADMS 2320 Chapter Notes - Chapter 2: Level Of Measurement, Frequency Distribution, Bar Chart

59 views4 pages
3 Jan 2013
Course
Professor

Document Summary

Stats i - chapter 2 descriptive techniques i. A set of data in such a way that useful information is produced. Its methods make use of graphical techniques and numerical descriptive measures (such as averages) to summarize and present the data. A variable is some characteristic of a population or sample. Typically denoted with a capital letter: x, y, z . The values of the variable are the range of possible values for a variable. Data are the observed values of a variable. E. g. student marks: {67, 74, 71, 83, 93, 55, 48} Also referred to as quantitative or numerical. Arithmetic operations can be performed on interval data, thus its meaningful to talk about 2 x. Height, or price + , and so on. The values of nominal data are categories of the data collected: E. g. responses to questions about marital status, coded as: Single = 1, married = 2, divorced = 3, widowed = 4.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents