1 / 6

You NEED your book!!! Frequency Distribution

You NEED your book!!! Frequency Distribution. April 12, 2012. What is Frequency Distribution?. What is Frequency Distribution?. Retail Management Testing Scores. Frequency Distribution is a convenient system for organizing large amounts of data.

dory
Download Presentation

You NEED your book!!! Frequency Distribution

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. You NEED your book!!!Frequency Distribution April 12, 2012

  2. What is Frequency Distribution?

  3. What is Frequency Distribution? Retail Management Testing Scores Frequency Distribution is a convenient system for organizing large amounts of data. • A number of classes determined, and all values in a class are tallied and grouped together • The most common way of displaying frequency distributions is by using a histogram • Histogram: a type of bar graph in which the width of each bar represents a class interval (the range of each class) and the height of the bar represents the frequency in that interval • Class Limits: the upper and lower values in each interval • Class Marks: the midpoints of the classes (the average of the upper and lower limits) Class interval Classes

  4. Example 1: The winning scores for the first 38 Super Bowls are:35, 33, 16, 23, 16, 24, 14, 24, 16, 21, 32, 27, 35, 31, 27, 26, 27, 38, 38, 46, 39, 42, 20, 55, 20, 37, 52, 30, 49, 27, 35, 31, 34, 23, 34, 20, 48, 32 • Find the range of the data b) Determine an appropriate class interval • Find the class marks d) Construct a frequency distribution of the data e) Draw a histogram of the data

  5. Example 1: The winning scores for the first 38 Super Bowls are:35, 33, 16, 23, 16, 24, 14, 24, 16, 21, 32, 27, 35, 31, 27, 26, 27, 38, 38, 46, 39, 42, 20, 55, 20, 37, 52, 30, 49, 27, 35, 31, 34, 23, 34, 20, 48, 32 f) What conclusions can you determine from the graph?

  6. Assignment: pg. 894 #10 & 11

More Related