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Ordinary least squares regression of Okun's law.Since the regression line does not miss any of the points by very much, the R 2 of the regression is relatively high.. In statistics, the coefficient of determination, denoted R 2 or r 2 and pronounced "R squared", is the proportion of the variation in the dependent variable that is predictable from the independent variable(s).
In time series analysis used in statistics and econometrics, autoregressive integrated moving average (ARIMA) and seasonal ARIMA (SARIMA) models are generalizations of the autoregressive moving average (ARMA) model to non-stationary series and periodic variation, respectively.
In GvK diagram, the x-axis is the vehicle velocity, and the y-axis is the dimensionless specific resistance.The same kind of vehicle may have multiple different operating velocities, with different corresponding specific resistances, consequently each kind of vehicle generally correspond to a whole region on the GvK diagram, but only the lower-edge of the region is plotted, since specific ...
A Venn diagram is a widely used diagram style that shows the logical relation between sets, popularized by John Venn (1834–1923) in the 1880s. The diagrams are used to teach elementary set theory, and to illustrate simple set relationships in probability, logic, statistics, linguistics and computer science.
On June 2, 1958, Aeronaves de México Flight 111, a Lockheed L-749A Constellation (registration XA-MEV), crashed into La Latilla Mountain, 16 kilometers (10 miles) from the airport, shortly after takeoff for a flight to Mexico City, after the airliner's crew failed to follow the established climb-out procedure for the airport after taking off.
Free-body diagram of a U-channel synchronous linear motor. The view is perpendicular to the channel axis. The two coils at centre are mechanically connected, and are energized in "quadrature" (meaning a phase difference of 90° (π/2 radians) between the flux of the magnets and the flux of the coils).
Gaucho from Argentina, photographed in Peru, 1868. A gaucho (Spanish:) or gaúcho (Portuguese:) is a skilled horseman, reputed to be brave and unruly.The figure of the gaucho is a folk symbol of Argentina, Paraguay, [1] Uruguay, Rio Grande do Sul in Brazil, the southern part of Bolivia, [2] and the south of Chilean Patagonia. [3]