html5-img
1 / 9

Chapter 2 Organizing Data

Chapter 2 Organizing Data. Section 2.1. Frequency Distributions, Histograms, and Related Topics. Do Now. Using the chart on the board, place a tally mark in two spots: The number of letters in your first name The number of letters in your last name

heba
Download Presentation

Chapter 2 Organizing Data

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. Chapter 2 Organizing Data

  2. Section 2.1 Frequency Distributions, Histograms, and Related Topics

  3. Do Now • Using the chart on the board, place a tally mark in two spots: • The number of letters in your first name • The number of letters in your last name • Ex: My first name is Mark, so I’d put a tally mark at “4”. My last name is Frew, so I’d put an additional tally mark at “4”.

  4. Histograms (Example) • http://www.cyber-wit.com/gallery_histogram.html#histogram

  5. Copy Figure 2-8 into Notebook • Mound-shaped Symmetrical • Typical Uniform • Skewed Left • Skewed Right • Bimodal

  6. Basic Steps for Creation by Hand • Determine the Number of Classes • Determine Class Width • Determine Class Boundaries • Tally • Find Relative Frequencies • Find Midpoints • Graph (X axis = # Line, Y Axis = Freq or Rel. Freq)

  7. Do Now • Using the NFL Touchdown Data from 2011, complete the frequency distribution.

  8. Steps in Excel: • Be sure Data Analysis Toolpack is installed • To Let Excel Decide on Bins: • Choose Data, Data Analysis, Histogram • Input Range is your data range. • Click Label if you have a title for your data. • Click Chart Output. • To make bars touch, click into white space on histogram:choose chart tools, design, chart layout #8 • Be sure to fix titles and labels

  9. Steps in Excel: • To have User Defined Bins: • Next to your data, type the right endpoint of each of your bars, with the exception of the last bar. • Choose Data, Data Analysis, Histogram • Input Range is your data range. • Bin Range is your right endpoints. • Click Label if you have a title for your data. • Click Chart Output.

More Related