Biostatistics

Measures of Dispersion

Range The range consists of a group of knowledge which shows the difference between the highest and lowest values within the data set. So as to seek out the range, it is necessary to first order the data from least to greatest. Then  we have to subtract the smallest value from …

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Organisation and Presentation of Qualitative & Quantitative Data

Organisation & Presentation of Qualitative & Quantitative Data   Presentation of Data There are two main methods of presenting data of a variable character or a variable. A)Tabulation/Tabular Presentation B)Drawing/Graphical Presentation   Tabulation Tabulation are devices for presenting data from a mass of statistical data. Preparation of frequency distribution table …

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Random Sampling

 Sampling Measuring a small portion of something and then making a general statement about the whole thing is known as sampling. Sampling is a process of selecting a number of units for a study in such a way that the units represent the larger group from which they are selected. …

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Introduction to Biostatistics: Scope, Variable & Data

Statistics Statistics is defined as a body of methods for making reasonable and wise decisions in the face of uncertainty. These are used in the analysis of numerical data of various aspects including interpretation of data on the basis of certain statistical principles. Statistics is a field of study concerned with …

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