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  2. Doomsday rule - Wikipedia

    en.wikipedia.org/wiki/Doomsday_rule

    Applying the Doomsday algorithm involves three steps: determination of the anchor day for the century, calculation of the anchor day for the year from the one for the century, and selection of the closest date out of those that always fall on the doomsday, e.g., 4/4 and 6/6, and count of the number of days between that date and the date in ...

  3. Otis–Lennon School Ability Test - Wikipedia

    en.wikipedia.org/wiki/Otis–Lennon_School...

    The test yields verbal and nonverbal scores, from which a total score is derived, called a School Ability Index (SAI). The SAI is a normalized standard score with a mean of 100 and a standard deviation of 16. With the exception of pre-K, the test is administered in groups.

  4. SAIDI - Wikipedia

    en.wikipedia.org/wiki/SAIDI

    The System Average Interruption Duration Index (SAIDI) [1] is commonly used as a reliability index by electric power utilities.SAIDI is the average cumulative outage duration for each customer served, and is calculated as:

  5. Projected COLA for 2025: September update — how it's ...

    www.aol.com/finance/social-security-cost-of...

    Source: Social Security Administration. The projected 2025 COLA for Social Security is 2.5%, according to an emailed September 11 TSCL press release, resulting in another drop.

  6. Shewhart individuals control chart - Wikipedia

    en.wikipedia.org/wiki/Shewhart_individuals...

    The "chart" actually consists of a pair of charts: one, the individuals chart, displays the individual measured values; the other, the moving range chart, displays the difference from one point to the next.

  7. Waterfall chart - Wikipedia

    en.wikipedia.org/wiki/Waterfall_chart

    An example of waterfall charts. Here, there are 3 total columns called Main Column1, Middle Column, and End Value. The accumulation of successive two intermediate columns from the first total column (Main Column1) as the initial value results in the 2nd total column (Middle Column), and the rest accumulation results in the last total column (End Value) as the final value.

  8. Reed–Solomon error correction - Wikipedia

    en.wikipedia.org/wiki/Reed–Solomon_error...

    Thus a Reed–Solomon code operating on 8-bit symbols has = = symbols per block. (This is a very popular value because of the prevalence of byte-oriented computer systems.) The number k {\displaystyle k} , with k < n {\displaystyle k<n} , of data symbols in the block is a design parameter.

  9. Variance inflation factor - Wikipedia

    en.wikipedia.org/wiki/Variance_inflation_factor

    In statistics, the variance inflation factor (VIF) is the ratio of the variance of a parameter estimate when fitting a full model that includes other parameters to the variance of the parameter estimate if the model is fit with only the parameter on its own. [1]