After reading this article you will learn about the measures of dispersion which is designed to state numerically the extent to which individual observation vary in the average. Range: It is the difference between the largest and smallest observation. Range = Maximum value — Minimum value. Mean Deviation: Mean deviation is the arithmetic mean of absolute deviation from mean or [...]
The following points highlight the top seven statistical procedures of biostatistics. The procedures are: 1. Calculation of Average or Central Tendency 2. Variability 3. Standard Deviation 4. Standard Error of Mean 5. Significance of Difference in Means of Small Samples or Student's 't' Test 6. Chi-Square Test (x2-Test) 7. Analysis of Variance (ANOVA). Procedure # 1. Calculation of Averages or [...]
In this article we will discuss about the Regression Analysis and Regression Lines in Statistics. Meaning of Regression: Regression means to return or come back. It is used in the cases where the values of data of two or more series tend to return toward the mean of the series. Sir Francis Galton observed that tall fathers produced tall sons [...]