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  2. 68–95–99.7 rule - Wikipedia

    en.wikipedia.org/wiki/68–95–99.7_rule

    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.

  3. Control chart - Wikipedia

    en.wikipedia.org/wiki/Control_chart

    Control charts are graphical plots used in production control to determine whether quality and manufacturing processes are being controlled under stable conditions. (ISO 7870-1) [1] The hourly status is arranged on the graph, and the occurrence of abnormalities is judged based on the presence of data that differs from the conventional trend or deviates from the control limit line.

  4. Standard deviation - Wikipedia

    en.wikipedia.org/wiki/Standard_deviation

    A five-sigma level translates to one chance in 3.5 million that a random fluctuation would yield the result. This level of certainty was required in order to assert that a particle consistent with the Higgs boson had been discovered in two independent experiments at CERN , [ 11 ] also leading to the declaration of the first observation of ...

  5. 'Be wary:' FBI warns shoppers of holiday scams as Black ...

    www.aol.com/wary-fbi-warns-shoppers-holiday...

    The FBI has issued a holiday scam advisory, warning shoppers to "be wary" of potential grifts as they begin to shop Black Friday and Cyber Monday sales.

  6. Normal distribution - Wikipedia

    en.wikipedia.org/wiki/Normal_distribution

    In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable.The general form of its probability density function is = ().

  7. Trump's transition team to arrive at Pentagon on Monday - AOL

    www.aol.com/news/trumps-transition-team-arrive...

    President-elect Donald Trump's transition team will arrive at the Pentagon on Monday, a Pentagon spokesperson said, after a delay in signing an agreement after the Nov. 5 election to formally ...

  8. Sigmatropic reaction - Wikipedia

    en.wikipedia.org/wiki/Sigmatropic_reaction

    An odd number is an indication of the involvement of a charged C atom or of a heteroatom lone pair replacing a CC double bond. Thus, [1,5] and [3,3] shifts become [1,4] and [2,3] shifts with heteroatoms, while preserving symmetry considerations. Hydrogens are omitted in the third example for clarity.

  9. Space firms plot new European satellite venture to take on ...

    www.aol.com/news/space-firms-plot-european...

    The bulk of the Airbus job cuts are expected to fall in the 2-billion-euro ($2.10 billion) space systems business, reeling from 1.5 billion euros of recent charges, industry sources said. Airbus ...