Mathematical statistics is the application of Mathematics to Statistics, which was originally conceived as the science of the state — the collection and analysis of facts about a country: its economy, and, military, population, and so forth. Does that mean her cancer is metastatic? The mean is also considered as one of the measures of central tendencies in … Define mathematics. Does ascites mean it's the end? So, the fraction of boys is two-fifths ( 2⁄5). Mean, in mathematics, a quantity that has a value intermediate between those of the extreme members of some set. In the case of median and mode, median refers to the middle value of the data set, whereas mode refers to the repeated numbers in the data set. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. When you think of averaging, you are most likely to think of finding the mean. It is given by: Mean = Sum of Observations/Total number of observations. Math is like an STD, it starts out as just a pain, but then it festers into this horrible disease which you can't even understand let alone do anything about. Example: what is the mean of 2, 7 and 9? Mean can also be called as average or arithmetic mean. 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