In information theory, perplexity is a measurement of how well a probability distribution or probability model predicts a sample. It may be used to compare probability models. == Perplexity of a probability distribution == where H(p) is the entropy of the distribution and x ranges over events. Perplexity of a random variable X may be defined as th... Found on http://en.wikipedia.org/wiki/Perplexity
[video game] Perplexity is a video game created by Ian Collinson for the Acorn Electron and BBC Micro and published by Superior Software in 1990. It is a pseudo 3D maze game with Sokoban style transport puzzles. ==Gameplay== Perplexity is an isometric pseudo 3D maze game which graphically resembles the 1987 arcade game Pac-Mania (both the m... Found on http://en.wikipedia.org/wiki/Perplexity_(video_game)
• (n.) The quality or state of being perplexed or puzzled; complication; intricacy; entanglement; distraction of mind through doubt or difficulty; embarrassment; bewilderment; doubt. Found on http://thinkexist.com/dictionary/meaning/perplexity/
Per·plex'i·ty noun ; plural Perplexities . [ Latin perplexitas : confer French perplexité .] The quality or state of being perplexed or puzzled; complication; intricacy; entanglement; distraction of mind through doubt or difficulty; embarrassment; bewilderment; doubt. ... Found on http://www.encyclo.co.uk/webster/P/60