AP Statistics Curriculum 2007 EDA Freq

From Socr

(Difference between revisions)
Jump to: navigation, search
(Computational Resources: Internet-based SOCR Tools)
Line 44: Line 44:
===Computational Resources: Internet-based SOCR Tools===
===Computational Resources: Internet-based SOCR Tools===
* [http://socr.ucla.edu/htmls/SOCR_Charts.html SOCR Charts] allows you to generate graphical representations (including frequency histograms) of a variety of datasets.
* [http://socr.ucla.edu/htmls/SOCR_Charts.html SOCR Charts] allows you to generate graphical representations (including frequency histograms) of a variety of datasets.
 +
* The [[SOCR_EduMaterials_ChartsActivities | SOCR Charts activities]] provide usage-instructions, examples and demonstrations of how to use SOCR Charts.
===Hands-on activities===
===Hands-on activities===

Revision as of 19:39, 27 January 2008

Contents

General Advance-Placement (AP) Statistics Curriculum - Summarizing data with Frequency Tables

Summarizing data with Frequency Tables & Histograms

There are two ways to describe a data set (sample from a population) - Pictorial Graphs or Tables of Numbers. Both are important for analyzing data.

Definitions

  • A frequency distribution is a display of the number (frequency) of occurrences of each value in a data set.
  • A relative frequency distribution is a display of the percent (ratio or frequency to sample-size) of occurrences of each value in a data set.

Example

Stage of disease at diagnosis of breast cancer in a random sample of US women.

Stage Frequency Relative Frequency
0 197 0.09
I 691 0.33
II 703 0.34
III 314 0.15
IV 187 0.09
Total 2092 1.00

Computational Resources: Internet-based SOCR Tools

  • SOCR Charts allows you to generate graphical representations (including frequency histograms) of a variety of datasets.
  • The SOCR Charts activities provide usage-instructions, examples and demonstrations of how to use SOCR Charts.

Hands-on activities

You can copy the first 2 columns in the data table above ans paste it in the SOCR Charts (BarChart --> XYPlot --> HistogramDemo7). You can see this SOCR Charts activity for help with histogram plots.


References




Translate this page:

(default)

Deutsch

Español

Français

Italiano

Português

日本語

България

الامارات العربية المتحدة

Suomi

इस भाषा में

Norge

한국어

中文

繁体中文

Русский

Nederlands

Ελληνικά

Hrvatska

Česká republika

Danmark

Polska

România

Sverige

Personal tools