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In the empirical sciences, the so-called three-sigma rule of thumb (or 3 σ rule) expresses a conventional heuristic that nearly all values are taken to lie within three standard deviations of the mean, and thus it is empirically useful to treat 99.7% probability as near certainty.
The G6AU and G6CU (both also called the 3.5 D ) are the large 3,497 cc (3.5 L; 213.4 cu in) versions of the Sigma engine. Bore and stroke are both larger at 93 mm × 85.8 mm (3.66 in × 3.38 in), respectively.
The advanced Zetec-SE (sometimes badged as Zetec-S) was developed in collaboration with Yamaha and Mazda, under the Sigma codename. It ranges in size from 1.2 to 1.7 L (1,242 to 1,679 cc). It ranges in size from 1.2 to 1.7 L (1,242 to 1,679 cc).
Taking the Fourier transform (unitary, angular-frequency convention) of a Gaussian function with parameters a = 1, b = 0 and c yields another Gaussian function, with parameters , b = 0 and /. [3] So in particular the Gaussian functions with b = 0 and c = 1 {\displaystyle c=1} are kept fixed by the Fourier transform (they are eigenfunctions of ...
The general form of its probability density function is [2] [3] = (). The parameter μ {\displaystyle \mu } is the mean or expectation of the distribution (and also its median and mode ), while the parameter σ 2 {\textstyle \sigma ^{2}} is the variance .
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Ford Duratec engine is a brand name of the Ford of Europe used for the company's range of gasoline-powered I3, I4, I5 and V6 passenger car engines. The original 1993 Duratec V6 engine was designed by Ford and Porsche. [1]
The 4G52 displaces 2.0 L (1,995 cc). Peak power for a 1975 Canter is 100 PS (74 kW), but power increased to as much as 125 PS (92 kW) for the twin-carb version fitted to the Galant GTO GSR and A115 Galant GS-II. Used an 84 mm × 90 mm (3.31 in × 3.54 in) bore and stroke. In Australia this engine was used in the Sigma, Scorpion and L200.