Frequency histograms

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  • When you have completed this chapter, you will be able to: Organize raw data into frequency distribution; produce a histogram, a frequency polygon, and a cumulative frequency polygon from quantitative data; develop and interpret a stem-and-leaf display; present qualitative data using such graphical techniques such as a clustered bar chart, a stacked bar chart, and a pie chart; detect graphic deceptions and use a graph to present data with clarity, precision, and efficiency.

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  • Statistics has evolved into a very important discipline that is applied in many fields. In the modern age of computing, both statistical methodology and its applications are expanding greatly. Among the many areas of application, we (Friis and Cher- nick) have direct experience in the use of statistical methods to military problems, space surveillance, experimental design, data validation, forecasting workloads, predicting the cost and duration of insurance claims, quality assurance, the design and analysis of clinical trials, and epidemiologic studies. ...

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  • Chapter 2 - Describing data: Frequency tables, frequency distributions, and graphic presentation. After completing this unit, you should be able to: Organize qualitative data into a frequency table, present a frequency table as a bar chart or a pie chart, organize quantitative data into a frequency distribution, present a frequency distribution for quantitative data using histograms, frequency polygons, and cumulative frequency polygons.

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  • Chapter 2 - Describing data: Frequency tables, frequency distributions, and graphic presentation. When you have completed this chapter, you will be able to: Organize qualitative data into a frequency table, present a frequency table as a bar chart or a pie chart, organize quantitative data into a frequency distribution, present a frequency distribution for quantitative data using histograms, frequency polygons, and cumulative frequency polygons.

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  • C H A P T E R 5 Good visibility – pictorial presentation of data Chapter objectives This chapter will help you to: ■ ■ ■ ■ ■ ■ illustrate qualitative data using pictographs, bar charts and pie charts portray quantitative data using histograms, cumulative frequency charts and stem and leaf displays present bivariate quantitative data using scatter diagrams display time series data using time series charts use the technology:

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  • IMAGE FEATURE EXTRACTION An image feature is a distinguishing primitive characteristic or attribute of an image. Some features are natural in the sense that such features are defined by the visual appearance of an image, while other, artificial features result from specific manipulations of an image. Natural features include the luminance of a region of pixels and gray scale textural regions. Image amplitude histograms and spatial frequency spectra are examples of artificial features.

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  • Chapter 2 - Descriptive statistics: Tabular and graphical methods. After mastering the material in this chapter, you will be able to: Summarize qualitative data by using frequency distributions, bar charts, and pie charts; construct and interpret Pareto charts (Optional); summarize quantitative data by using frequency distributions, histograms, frequency polygons, and ogives;...

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