What's New

Upgrade to iOS 15.0

App Description

In probability and statistics, the Log Series Distribution is a discrete probability distribution derived from the Maclaurin series expansion.

The Log Series Distribution app provides for the data entry of two variables: Number of Trials and a Probability Parameter. The range for the Number of Trials variable is 1.0 - 12.0 and the range of the Probability Parameter is 0.01 - 0.99.

The Log Series Distribution app produces a PDF/CDF Graph and PDF/CDF Data Tables The Number of Trials and Probability Parameter variables selected are used to compute the PDF/CDF data.

The PDF and CDF graphs are touch interactive graphs for computed (x/Pr(x) paired values. The graphs hav a touch feature whereby upon the touch a slidable vertical line appears. Upon movement of the line a paired (x,Pr(x) values appear relative to the line position on the graph curve.

The horizontal x-axis displays computed (x) values. The vertical y-axis plots a range of Pr(X) values.

Horizontal Max and Min dashed lines display the Maximum and Minimum Pr(x) values

iPhone Screenshots

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Log Series Distribution screenshot 1 Log Series Distribution screenshot 2 Log Series Distribution screenshot 3 Log Series Distribution screenshot 4 Log Series Distribution screenshot 5

iPad Screenshots

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Log Series Distribution screenshot 6 Log Series Distribution screenshot 7 Log Series Distribution screenshot 8 Log Series Distribution screenshot 9 Log Series Distribution screenshot 10

App Changes

  • February 19, 2016 Initial release
  • November 10, 2016 New version 1.1
  • June 14, 2019 New version 1.2
  • January 07, 2020 New version 1.3
  • October 22, 2020 New version 1.4
  • October 08, 2021 New version 1.5