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2. ### Bootstrapping (statistics) - Wikipedia

en.wikipedia.org/wiki/Bootstrapping_(statistics)

Smoothed bootstrap. In 1878, Simon Newcomb took observations on the speed of light. The data set contains two outliers, which greatly influence the sample mean. (The sample mean need not be a consistent estimator for any population mean, because no mean needs to exist for a heavy-tailed distribution.)

3. ### Bootstrapping (linguistics) - Wikipedia

en.wikipedia.org/wiki/Bootstrapping_(linguistics)

Bootstrapping (linguistics) Bootstrapping is a term used in language acquisition in the field of linguistics. It refers to the idea that humans are born innately equipped with a mental faculty that forms the basis of language. It is this language faculty that allows children to effortlessly acquire language.

4. ### Pie chart - Wikipedia

en.wikipedia.org/wiki/Ring_chart

Pie chart of populations of English native speakers. A pie chart (or a circle chart) is a circular statistical graphic, which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each slice (and consequently its central angle and area ), is proportional to the quantity it represents.

5. ### Sampling (statistics) - Wikipedia

en.wikipedia.org/wiki/Sampling_techniques

This is a complex form of cluster sampling in which two or more levels of units are embedded one in the other. The first stage consists of constructing the clusters that will be used to sample from. In the second stage, a sample of primary units is randomly selected from each cluster (rather than using all units contained in all selected clusters).

6. ### Landing page - Wikipedia

en.wikipedia.org/wiki/Landing_page

Any signup forms on the landing page should reflect the value of the offer. For example, a free offer or newsletter sign up form may only request an email address, whereas high value offers may have longer forms with more details required. They may also include a relevant image, animation or short video.

7. ### Jackknife resampling - Wikipedia

en.wikipedia.org/wiki/Jackknife_method

Statistical method. In statistics, the jackknife is a resampling technique especially useful for variance and bias estimation. The jackknife pre-dates other common resampling methods such as the bootstrap. The jackknife estimator of a parameter is found by systematically leaving out each observation from a dataset and calculating the estimate ...

8. ### Nonparametric statistics - Wikipedia

en.wikipedia.org/wiki/Distribution-free

Nonparametric statistics is the branch of statistics that is not based solely on parametrized families of probability distributions (common examples of parameters are the mean and variance). Nonparametric statistics is based on either being distribution-free or having a specified distribution but with the distribution's parameters unspecified.