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  2. Coefficient of determination - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_determination

    Ordinary least squares regression of Okun's law.Since the regression line does not miss any of the points by very much, the R 2 of the regression is relatively high.. In statistics, the coefficient of determination, denoted R 2 or r 2 and pronounced "R squared", is the proportion of the variation in the dependent variable that is predictable from the independent variable(s).

  3. Calinski–Harabasz index - Wikipedia

    en.wikipedia.org/wiki/Calinski–Harabasz_index

    The number of degrees of freedom of WCSS is n - k, since fixing the centroid of each cluster reduces the degrees of freedom by one. This is because given a centroid c i of cluster C i , the assignment of n i - 1 points to that cluster also determines the assignment of the n i th point, since the overall mean of the points assigned to the ...

  4. Pseudo-R-squared - Wikipedia

    en.wikipedia.org/wiki/Pseudo-R-squared

    The last value listed, labelled “r2CU” is the pseudo-r-squared by Nagelkerke and is the same as the pseudo-r-squared by Cragg and Uhler. Pseudo-R-squared values are used when the outcome variable is nominal or ordinal such that the coefficient of determination R 2 cannot be applied as a measure for goodness of fit and when a likelihood ...

  5. Point-biserial correlation coefficient - Wikipedia

    en.wikipedia.org/wiki/Point-biserial_correlation...

    Further, n 1 is the number of data points in group 1, n 0 is the number of data points in group 2 and n is the total sample size. This formula is a computational formula that has been derived from the formula for r XY in order to reduce steps in the calculation; it is easier to compute than r XY. There is an equivalent formula that uses s n−1:

  6. Lou Carnesecca, legendary St. John's basketball coach, dies at 99

    www.aol.com/lou-carnesecca-longtime-st-johns...

    NEW YORK — Lou Carnesecca, the legendary St. John's basketball coach and New York sports icon, has died at age 99. Carnesecca was beloved and turned St. John's basketball into a national ...

  7. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    The table shown on the right can be used in a two-sample t-test to estimate the sample sizes of an experimental group and a control group that are of equal size, that is, the total number of individuals in the trial is twice that of the number given, and the desired significance level is 0.05. [4]

  8. 10 Christmas bedding essentials for a cozy guest room - AOL

    www.aol.com/lifestyle/christmas-bedding...

    Create a cozy bedroom even Mrs. Claus would envy with Christmas quilts, flannel sheets, plaid throw blankets and festive throw pillows.

  9. NFL Power Rankings entering Week 17: Should a loss ... - AOL

    www.aol.com/sports/nfl-power-rankings-entering...

    Recency bias is rampant in the NFL. The way the Philadelphia Eagles will be talked about this week, you'd think their record is 0-1 instead of 12-3.