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  2. Interquartile range - Wikipedia

    en.wikipedia.org/wiki/Interquartile_range

    Boxplot (with an interquartile range) and a probability density function (pdf) of a Normal N(0,σ 2) Population. In descriptive statistics, the interquartile range (IQR) is a measure of statistical dispersion, which is the spread of the data. [1] The IQR may also be called the midspread, middle 50%, fourth spread, or H‑spread.

  3. Five-number summary - Wikipedia

    en.wikipedia.org/wiki/Five-number_summary

    The five-number summary gives information about the location (from the median), spread (from the quartiles) and range (from the sample minimum and maximum) of the observations. Since it reports order statistics (rather than, say, the mean) the five-number summary is appropriate for ordinal measurements , as well as interval and ratio measurements.

  4. Robust measures of scale - Wikipedia

    en.wikipedia.org/wiki/Robust_measures_of_scale

    One of the most common robust measures of scale is the interquartile range (IQR), the difference between the 75th percentile and the 25th percentile of a sample; this is the 25% trimmed range, an example of an L-estimator. Other trimmed ranges, such as the interdecile range (10% trimmed range) can also be used.

  5. Interquartile mean - Wikipedia

    en.wikipedia.org/wiki/Interquartile_mean

    The interquartile mean (IQM) (or midmean) is a statistical measure of central tendency based on the truncated mean of the interquartile range. The IQM is very similar to the scoring method used in sports that are evaluated by a panel of judges: discard the lowest and the highest scores; calculate the mean value of the remaining scores.

  6. Small business owners must report by end of the year to avoid ...

    www.aol.com/small-business-owners-must-report...

    Small business owners face severe penalties if they don't report to the federal government by year's end. Thousands of businesses may not realize they are subject to a new reporting process ...

  7. Range (statistics) - Wikipedia

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

    In descriptive statistics, the range of a set of data is size of the narrowest interval which contains all the data. It is calculated as the difference between the largest and smallest values (also known as the sample maximum and minimum). [1] It is expressed in the same units as the data. The range provides an indication of statistical ...

  8. Champion Rower, 27, Dies After Free-Diving Accident in the ...

    www.aol.com/champion-rower-27-dies-free...

    A champion rower has died while free-diving. According to a GoFundMe page, shared last week, 27-year-old Austin Regier died in the Philippines on November 14, 2024. "He was swimming with new ...

  9. Airplane returns to airport after takeoff after hitting a ...

    www.aol.com/airplane-returns-airport-takeoff...

    A flight to China was cut short after the aircraft caught on fire after it hit a bird soon after takeoff in Rome, airport officials said.. The engine of a Boeing 787-9 Dreamliner operated by China ...