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  2. Evaluation of binary classifiers - Wikipedia

    en.wikipedia.org/wiki/Evaluation_of_binary...

    An F-score is a combination of the precision and the recall, providing a single score. There is a one-parameter family of statistics, with parameter β, which determines the relative weights of precision and recall. The traditional or balanced F-score is the harmonic mean of precision and recall:

  3. Confidence interval - Wikipedia

    en.wikipedia.org/wiki/Confidence_interval

    A 95% confidence level does not mean that 95% of the sample data lie within the confidence interval. A 95% confidence level does not mean that there is a 95% probability of the parameter estimate from a repeat of the experiment falling within the confidence interval computed from a given experiment. [25]

  4. 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 = (). [citation needed]

  5. Coherent risk measure - Wikipedia

    en.wikipedia.org/wiki/Coherent_risk_measure

    The non-concavity of proves the non coherence of this risk measure. Illustration As a simple example to demonstrate the non-coherence of value-at-risk consider looking at the VaR of a portfolio at 95% confidence over the next year of two default-able zero coupon bonds that mature in 1 years time denominated in our numeraire currency.

  6. Test score - Wikipedia

    en.wikipedia.org/wiki/Test_score

    Scores on both forms can be converted to a scale so that these two equivalent scores have the same reported scores. For example, they could both be a score of 350 on a scale of 100 to 500. Two well-known tests in the United States that have scaled scores are the ACT and the SAT. The ACT's scale ranges from 0 to 36 and the SAT's from 200 to 800 ...

  7. Best CD rates today: Done with shopping deals? Lock in ... - AOL

    www.aol.com/finance/best-cd-rates-today-done...

    1.84%. 1.81%. Up 3 basis points. 24-month (2 year) CD ... The FDIC is an independent government agency charged with maintaining stability and public confidence in the U.S. financial system and ...

  8. Multivariate normal distribution - Wikipedia

    en.wikipedia.org/wiki/Multivariate_normal...

    The equidensity contours of a non-singular multivariate normal distribution are ellipsoids (i.e. affine transformations of hyperspheres) centered at the mean. [28] Hence the multivariate normal distribution is an example of the class of elliptical distributions .

  9. Study: 84% of Retirees Are Making This RMD Mistake - AOL

    www.aol.com/finance/84-retirees-rmd-mistake...

    A withdrawal approach based solely on … Continue reading → The post 84% of Retirees Are Making This RMD Mistake appeared first on SmartAsset Blog.