Graphical Representation of Data / Variables Ø The data presentation in statistics may be Numerical or Graphical. Ø If the data is presented in the numerical form, it will not attract the attention of the audience. Ø In order to attract the attention of the audience, Graphical Representation method is […]
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What is Frequency Distribution?
In the previous post, we have discussed the concept of Tables and Tabulation of Variables in Statistics. Here we will discuss the concept of Statistical Tables better known as Frequency Distributions of Frequency Tables. Statistical Tables Ø There are different types of tables in statistics. Ø The most common type […]
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Graphical Representation of Data 1: Tables and Tabulation with PPT
“Science is organized knowledge… Wisdom is organized life… Immanuel Kant What is Data or Variable? Ø Data or variables in biostatistics (statistics) are individual observations of a natural phenomenon or an experiment. Ø All scientific investigations involve observations on the variables. Ø Observations made on these variables are obtained in […]
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Type I and Type II Errors in Statistics (with PPT)
“An error does not become truth by reason of multiplied propagation, nor does truth become error because nobody sees it…” Mahatma Gandhi For the better understanding of statistical errors, it is essential to understand the concept of ‘Level of significance’, ‘Null hypothesis and ‘Alternate hypothesis’. What is ‘Level of Significance? […]
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What is Science? Simple Definition of Science and Scientific Knowledge + PPT
“Only two things are infinite, the universe and human stupidity, and I’m not sure about the former…” Albert Einstein What is science? Ø Definition of science: Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the world. Ø The word ‘science’ is […]
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