enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Most probable number - Wikipedia

    en.wikipedia.org/wiki/Most_probable_number

    Downloadable EXCEL program for the determination of the Most Probable Numbers (MPN), their standard deviations, confidence bounds and rarity values according to Jarvis, B., Wilrich, C., and P.-T. Wilrich: Reconsideration of the derivation of Most Probable Numbers, their standard deviations, confidence bounds and rarity values.

  3. Bias of an estimator - Wikipedia

    en.wikipedia.org/wiki/Bias_of_an_estimator

    A standard choice of uninformative prior for this problem is the Jeffreys prior, () /, which is equivalent to adopting a rescaling-invariant flat prior for ln(σ 2). One consequence of adopting this prior is that S 2 /σ 2 remains a pivotal quantity , i.e. the probability distribution of S 2 /σ 2 depends only on S 2 /σ 2 , independent of the ...

  4. 68–95–99.7 rule - Wikipedia

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

    For an approximately normal data set, the values within one standard deviation of the mean account for about 68% of the set; while within two standard deviations account for about 95%; and within three standard deviations account for about 99.7%. Shown percentages are rounded theoretical probabilities intended only to approximate the empirical ...

  5. Unbiased estimation of standard deviation - Wikipedia

    en.wikipedia.org/wiki/Unbiased_estimation_of...

    Bias in standard deviation for autocorrelated data. The figure shows the ratio of the estimated standard deviation to its known value (which can be calculated analytically for this digital filter), for several settings of α as a function of sample size n. Changing α alters the variance reduction ratio of the filter, which is known to be

  6. 5 ways to tell if you’re on track for retirement — and 5 ...

    www.aol.com/finance/5-ways-tell-track-retirement...

    Bankrate’s retirement calculator even lets you input different rates of return on your investments and accounts for estimated annual salary increases. 4. Map out your retirement budget.

  7. Yamartino method - Wikipedia

    en.wikipedia.org/wiki/Yamartino_method

    The Yamartino method, introduced by Robert J. Yamartino in 1984, solves both problems [2] A further discussion of the Yamartino method, along with other methods of estimating the standard deviation of wind direction can be found in Farrugia & Micallef. It is possible to calculate the exact standard deviation in one pass.

  8. All of these Black Friday deals would make very good gifts - AOL

    www.aol.com/lifestyle/all-of-these-black-friday...

    These pillows are Amazon's No. 1 bestselling bed pillows, with more than 240,000 reviews.And right now you can get both King and Queen sizes for 20% off, making this two-pack a better deal than ...

  9. Presumption - Wikipedia

    en.wikipedia.org/wiki/Presumption

    In law, a presumption is an "inference of a particular fact". [1] There are two types of presumptions: rebuttable presumptions and irrebuttable (or conclusive) presumptions. [2]: 25 A rebuttable presumption will either shift the burden of production (requiring the disadvantaged party to produce some evidence to the contrary) or the burden of proof (requiring the disadvantaged party to show the ...