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v. t. e. A descriptive statistic (in the count noun sense) is a summary statistic that quantitatively describes or summarizes features from a collection of information, [ 1] while descriptive statistics (in the mass noun sense) is the process of using and analysing those statistics. Descriptive statistics is distinguished from inferential ...
t. e. In probability theory and statistics, a probability distribution is the mathematical function that gives the probabilities of occurrence of possible outcomes for an experiment. [ 1][ 2] It is a mathematical description of a random phenomenon in terms of its sample space and the probabilities of events ( subsets of the sample space).
In statistics, the standard deviation is a measure of the amount of variation of the values of a variable about its mean. [1] A low standard deviation indicates that the values tend to be close to the mean (also called the expected value ) of the set, while a high standard deviation indicates that the values are spread out over a wider range.
Classical mechanics is the branch of physics used to describe the motion of macroscopic objects. [1] It is the most familiar of the theories of physics. The concepts it covers, such as mass, acceleration, and force, are commonly used and known. [2]
e. In physics, statistical mechanics is a mathematical framework that applies statistical methods and probability theory to large assemblies of microscopic entities. Sometimes called statistical physics or statistical thermodynamics, its applications include many problems in the fields of physics, biology, [ 1] chemistry, neuroscience, [ 2 ...
Frequency (statistics) In statistics, the frequency or absolute frequency of an event is the number of times the observation has occurred/recorded in an experiment or study. [ 1]: 12–19 These frequencies are often depicted graphically or in tabular form.
ρ = ρ ( r) = Fluid density at gravitational equipotential containing r. g = g ( r) = Gravitational field strength at point r. ∇ P = Pressure gradient. ∇ P = ρ g {\displaystyle abla P=\rho \mathbf {g} \,\!} Buoyancy equations. ρf = Mass density of the fluid. Vimm = Immersed volume of body in fluid.
Mathematical statistics is the application of probability theory, a branch of mathematics, to statistics, as opposed to techniques for collecting statistical data. Specific mathematical techniques which are used for this include mathematical analysis, linear algebra, stochastic analysis, differential equations, and measure theory. [ 1][ 2]