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  2. Hamming code - Wikipedia

    en.wikipedia.org/wiki/Hamming_code

    A two-out-of-five code is an encoding scheme which uses five bits consisting of exactly three 0s and two 1s. This provides () = possible combinations, enough to represent the digits 0–9.

  3. Blocking (statistics) - Wikipedia

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

    In the examples listed above, a nuisance variable is a variable that is not the primary focus of the study but can affect the outcomes of the experiment. [3] They are considered potential sources of variability that, if not controlled or accounted for, may confound the interpretation between the independent and dependent variables .

  4. Data compression - Wikipedia

    en.wikipedia.org/wiki/Data_compression

    Data compression aims to reduce the size of data files, enhancing storage efficiency and speeding up data transmission. K-means clustering, an unsupervised machine learning algorithm, is employed to partition a dataset into a specified number of clusters, k, each represented by the centroid of its points.

  5. Family-wise error rate - Wikipedia

    en.wikipedia.org/wiki/Family-wise_error_rate

    Yosef Hochberg's step-up procedure (1988) is performed using the following steps: [7]. Start by ordering the p-values (from lowest to highest) () … and let the associated hypotheses be …

  6. Multiple comparisons problem - Wikipedia

    en.wikipedia.org/wiki/Multiple_comparisons_problem

    Given a large enough pool of variables for the same time period, it is possible to find a pair of graphs that show a spurious correlation. In statistics , the multiple comparisons , multiplicity or multiple testing problem occurs when one considers a set of statistical inferences simultaneously [ 1 ] or estimates a subset of parameters selected ...

  7. Paired data - Wikipedia

    en.wikipedia.org/wiki/Paired_data

    In some cases, the data sets are paired, meaning there is an obvious and meaningful one-to-one correspondence between the data in the first set and the data in the second set, compare Blocking (statistics). For example, paired data can arise from measuring a single set of individuals at different points in time. [1]

  8. Hotelling's T-squared distribution - Wikipedia

    en.wikipedia.org/wiki/Hotelling's_T-squared...

    In statistics, particularly in hypothesis testing, the Hotelling's T-squared distribution (T 2), proposed by Harold Hotelling, [1] is a multivariate probability distribution that is tightly related to the F-distribution and is most notable for arising as the distribution of a set of sample statistics that are natural generalizations of the statistics underlying the Student's t-distribution.

  9. Lempel–Ziv–Markov chain algorithm - Wikipedia

    en.wikipedia.org/wiki/Lempel–Ziv–Markov_chain...

    The range decoder state consists of two unsigned 32-bit variables, range (representing the range size), and code (representing the encoded point within the range). Initialization of the range decoder consists of setting range to 2 32 − 1 , and code to the 32-bit value starting at the second byte in the stream interpreted as big-endian; the ...