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  2. Aggregate function - Wikipedia

    en.wikipedia.org/wiki/Aggregate_function

    Average (i.e., arithmetic mean) Count; Maximum; Median; Minimum; Mode; Range; Sum; Others include: Nanmean (mean ignoring NaN values, also known as "nil" or "null") Stddev; Formally, an aggregate function takes as input a set, a multiset (bag), or a list from some input domain I and outputs an element of an output domain O. [1]

  3. Weighted arithmetic mean - Wikipedia

    en.wikipedia.org/wiki/Weighted_arithmetic_mean

    However, this does not account for the difference in number of students in each class (20 versus 30); hence the value of 85 does not reflect the average student grade (independent of class). The average student grade can be obtained by averaging all the grades, without regard to classes (add all the grades up and divide by the total number of ...

  4. Select (SQL) - Wikipedia

    en.wikipedia.org/wiki/Select_(SQL)

    SQL includes operators and functions for calculating values on stored values. SQL allows the use of expressions in the select list to project data, as in the following example, which returns a list of books that cost more than 100.00 with an additional sales_tax column containing a sales tax figure calculated at 6% of the price.

  5. Arithmetic mean - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_mean

    A weighted average, or weighted mean, is an average in which some data points count more heavily than others in that they are given more weight in the calculation. [6] For example, the arithmetic mean of 3 {\displaystyle 3} and 5 {\displaystyle 5} is 3 + 5 2 = 4 {\displaystyle {\frac {3+5}{2}}=4} , or equivalently 3 ⋅ 1 2 + 5 ⋅ 1 2 = 4 ...

  6. Kernel regression - Wikipedia

    en.wikipedia.org/wiki/Kernel_regression

    Python: the KernelReg class for mixed data types in the statsmodels.nonparametric sub-package (includes other kernel density related classes), the package kernel_regression as an extension of scikit-learn (inefficient memory-wise, useful only for small datasets) R: the function npreg of the np package can perform kernel regression. [7] [8]

  7. Ranking the potential upsets in the College Football Playoff

    www.aol.com/sports/ranking-potential-upsets...

    The potential drama that looms over the home sideline is too large to ignore in this game, or any possible game going forward. 2. #10 Indiana at #7 Notre Dame Line: Notre Dame -7.5

  8. Top 5 nursing trends shaping health care in 2025 - AOL

    www.aol.com/top-5-nursing-trends-shaping...

    Based on salary data from jobs posted on Vivian Health on Nov. 21, 2024, the average hourly RN salary was $43.63 nationwide, with this average jumping as high as $71 in some states.

  9. The Kate Spade Outlet Black Friday sale is here — shop our ...

    www.aol.com/lifestyle/the-kate-spade-outlet...

    The versatile little number easily transitions from crossbody to shoulder bag. We love the understated yet edgy chain for a hit of glam. It comes in seven other colors, including green, black and ...