1 / 10

Displaying Distributions With Graphs

Displaying Distributions With Graphs. Section 1.1. A Picture is worth a thousand words. First three rules for describing data: Make a picture Make a picture Make a picture. Categorical Data.

abigail-zamora
Download Presentation

Displaying Distributions With Graphs

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. Displaying Distributions With Graphs Section 1.1

  2. A Picture is worth a thousand words • First three rules for describing data: • Make a picture • Make a picture • Make a picture

  3. Categorical Data • The following table displays the sales figures and market share (percent of total sales) achieved by several major soft drink companies in 1999. That year a total of 9930 million cases of soft drink were sold.

  4. Creating a Bar Graph • Title your graph • Label axes • Horizontal Axis is the categories • Vertical Axis can be • Counts (Frequency) • Proportions (Relative Frequency) • Percents • Scale your axes • Draw vertical bars to represent counts, proportions, or percents

  5. Creating a Pie Graph • The most accurate way to create a pie graph is to use a computer. However pie graphs can be created using estimation, or by using a protractor and using the appropriate number of degrees to create the graph.

  6. Bar Graphs show a bar that represents either the count, proportion, or percentage of each category. Bar graphs may or may not show all categories. Pie Graphs show how a “whole” divides into categories using either the proportion or percentage. To use a pie graph you must include all the categories that make up the whole.

  7. Further Resources • Practice of Statistics: pg 8-9 • Homework 1.1: #2

More Related