Biostatistics Definition by Croxton and Cowden

What is Biostatistics?

The use of statistics to analyse biological data (or) Application of statistics to the analysis of biological data.

Definition by Croxton and Cowden

Statistics may be defined as the science of collection, presentation, analysis and interpretation of numerical data

1. Collection of Data

• First statistical investigation
• Most important step because the entire results will depend upon the quality of this collection
• There are different methods of collection of data such as census, sampling, primary, secondary, etc.
• The investigator should make use of correct method

2. Presentation of data

• After the data have been collected they are ready for presentation
• Two type od presentation diagrammatic or graphic form

3. Analysis of data

• The data presented should be carefully analysed.

4. Interpretation of data

• The last stage in statistical investigation is interpretation
• A valid conclusion must be drawn on the basis of analysis.
• A high degree of skill and experience is necessary for the interpretation

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