In this article we will discuss about the definition of ‘t’ Test with example. t-Test is a method to find out whether the difference is quite significant to conclude that the two samples are really different, or the difference in two samples is simply because of some fluctuation, or due to some error or lapses in the experiment. In some [...]
In this article we will discuss about the definition of standard deviation with example. Also learn about standard error. The standard deviation or mean error is an absolute measure of dispersion of an individual series or a frequency distribution, is the square root of the arithmetic mean of the squares of deviations of values from their arithmetic mean. This measure [...]
After reading this article you will learn about:- 1. Definition of Statistics 2. Characteristics of Statistics 3. Classes 4. Statistical Error. Definition of Statistics: According to Horace Secrist: 'By Statistics we mean aggregates of facts affected to a marked extent by multiplicity of causes numerically expressed, enumerated or estimated according to reasonable standards of accuracy, collected in a systematic manner [...]