![]() ![]() You'll also come across upper case gamma (Γ) as a variable, or as a function name. See Math of Beauty.) The first 3 letters of the Greek alphabet, α (alpha), β (beta) and γ (gamma) are also used in trigonometry as variables for angles. The symbol 'N' represents the total number of individuals or cases in the population.Ĭommon Greek letters used in mathematics Pi was chosen to stand for 'perimeter'. The symbol 'Σ X i' represents the sum of all scores present in the population (say, in this case) X 1 X 2 X 3 and so on. The symbol 'μ' represents the population mean. Standard deviation For variance, apply a squared symbol (s² or σ²).Īlso Know, what does B stand for in statistics? betaįurthermore, what do the symbols in statistics mean? View or Print: These pages change automatically for your screen or printer. Moreover, what are Greek letters used to represent in statistics? ![]() For example, μ refers to a population mean and x, to a sample mean. Their sample counterparts, however, are usually Roman letters. The sample mean of the phone company’s customer base over six months is 20,792. For the phone company, this would mean that they divide 124,750 by 6 to arrive at their sample mean. Enter your equation, using Accent to add Bar/Hat, while having character highlighted. The final step to figuring out a sample mean is to input the values you’ve determined into the original equation and divide to solve. It will combine whatever character you typed with the diacritical marks. For Character code: for bar, use 0305, for hat use 0302. In the case of a discrete probability distribution of a random variable X, the mean is equal to the sum over every possible value weighted by the probability of that value that is, it is computed by taking the product of each possible value x of X and its probability P(x) and then adding all these products together. Like capital letters, Greek letters refer to population attributes. Go to Insert ribbon tool -> Symbols -> Symbol. ![]()
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