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  2. PS Power and Sample Size - Wikipedia

    en.wikipedia.org/wiki/PS_Power_and_Sample_Size

    Download as PDF; Printable version ... PS Power and Sample Size Calculator; Developer(s) W.D ... August 2014. Operating system: Windows. Also on Apple and ...

  3. Galton board - Wikipedia

    en.wikipedia.org/wiki/Galton_board

    Galton box A Galton box demonstrated. The Galton board, also known as the Galton box or quincunx or bean machine (or incorrectly Dalton board), is a device invented by Francis Galton [1] to demonstrate the central limit theorem, in particular that with sufficient sample size the binomial distribution approximates a normal distribution.

  4. Sturges's rule - Wikipedia

    en.wikipedia.org/wiki/Sturges's_rule

    Sturges's rule [1] is a method to choose the number of bins for a histogram.Given observations, Sturges's rule suggests using ^ = + ⁡ bins in the histogram. This rule is widely employed in data analysis software including Python [2] and R, where it is the default bin selection method.

  5. Stars and bars (combinatorics) - Wikipedia

    en.wikipedia.org/wiki/Stars_and_bars_(combinatorics)

    The solution to this particular problem is given by the binomial coefficient (+), which is the number of subsets of size k − 1 that can be formed from a set of size n + k − 1. If, for example, there are two balls and three bins, then the number of ways of placing the balls is ( 2 + 3 − 1 3 − 1 ) = ( 4 2 ) = 6 {\displaystyle {\tbinom {2 ...

  6. Binomial test - Wikipedia

    en.wikipedia.org/wiki/Binomial_test

    However, as the example below shows, the binomial test is not restricted to this case. When there are more than two categories, and an exact test is required, the multinomial test, based on the multinomial distribution, must be used instead of the binomial test. [1] Most common measures of effect size for Binomial tests are Cohen's h or Cohen's g.

  7. Download, install, or uninstall AOL Desktop Gold

    help.aol.com/articles/aol-desktop-downloading...

    Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.

  8. College Football Playoff: Making the national championship ...

    www.aol.com/sports/college-football-playoff...

    They have the best scoring defense in the country at 10.9 points per game with 35 sacks. Defensive back Caleb Downs is also an impact punt returner. All the pieces are there for Ohio State.

  9. Brown snow fell in a Maine town. Here's what officials say ...

    www.aol.com/brown-snow-fell-maine-town-234035621...

    Snowfall is nothing new in Maine, but usually it's white. The east Maine town of Rumford experienced a rare weather event Tuesday in the form of brown snow, town officials confirmed on Facebook.