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بسم الله الرحمن الرحيم

بسم الله الرحمن الرحيم. Introduction to Biostatistics. Dr. Laila Mohamed Nofal Professor of Biostatistics High Institute of Public Health University of Alexandria. Tabular Presentation. Tables. Simple (One variable). Complex (More than one variable ). Example (Quantitative Data).

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بسم الله الرحمن الرحيم

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  1. بسم الله الرحمن الرحيم

  2. Introduction to Biostatistics Dr. Laila Mohamed Nofal Professor of Biostatistics High Institute of Public Health University of Alexandria

  3. TabularPresentation Tables Simple (One variable) Complex (More than one variable)

  4. Example (Quantitative Data)

  5. Formation of Classes Smallest observation = 24 Lower Limit of 1st class = 20 Largest observation = 48 Upper Limit of last class = 50 Range = 50-20=30 Number of classes = Range / width of class Appropriate number of classes: 4-12 classes Let width of class = 5 Number of classes=30/5 = 6 which is an appropriate number

  6. Tallying Table

  7. Distribution of Patients according to age in Hospital X , 2012

  8. Distribution of Patients according to age and sex in Hospital X , 2012 1/6 x 100 2 / 4 x 100

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