Psychology 2810 Chapter Notes - Chapter 6: Frequency Distribution, Normal Distribution, Cumulative Frequency Analysis

19 views2 pages
Published on 7 Feb 2013
Department
Chapter 6
TABULAR AND GRAPHICAL DESCRIPTION OF DATA
empirical data- analysis and summarization of data in ways that make it possible to see
the patterns that exist in them. Includes presenting data in tables, graphs, and numerical
summaries.
table- a display of data in a matrix format
graph - a representation of data by spatial relationships in a diagram
x-axis: independent variable
y-axis: dependent variable
Frequency Tables
-in this table rows indicate possible scores on test, page 143
Frequency Distributions
-a graph that shows the number of scores that fall into specific buns, or divisions of the
variable
histogram- a frequency distribution in which the frequencies are represented by contigu-
ous bars
frequency polygon- a frequency distribution in which the frequencies are connected by
straight lines
normal curve- a bell shaped curve described by a certain mathematical function
skewed- a distribution that is not symmetrical
Cumulative Frequency Distributions
-a frequency distribution indicates the number of cases at each score
cumulative frequency distribution- a frequency distribution that shows the number of
scores that fall at or below a certain score
Unlock document

This preview shows half of the first page of the document.
Unlock all 2 pages and 3 million more documents.

Already have an account? Log in

Get OneClass Notes+

Unlimited access to class notes and textbook notes.

YearlyBest Value
75% OFF
$8 USD/m
Monthly
$30 USD/m
You will be charged $96 USD upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.