Statistics is a study of data collection and therefore the concept of analyzing statistical data is very important. Any collection of information is called data. In order to measure the statistical data and analyze it the measures of central tendency are used: mean, median, mode and range. Also mean is the most importantly used in analyze statistical data.
Friday, July 29, 2011
Wednesday, July 27, 2011
statistics linear regression
Linear Regression Definition states that it can be measured by using lines of regression. Regression measures the amount of average relationship or mathematical relationship between variables in terms of original units of knowledge. Whereas, correlation measures the nature of relationship between variables. i.e.., positive or negative or uncorrelated.
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