Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA Path: utzoo!watmath!clyde!cbosgd!ihnp4!mhuxn!mhuxb!mhuxr!ulysses!allegra!bellcore!decvax!genrad!mit-eddie!godot!harvard!seismo!brl-tgr!tgr!dca-pgs@DDN1.ARPA From: dca-pgs@DDN1.ARPA Newsgroups: net.mail.headers Subject: Question on Probability of Keyboard Error Message-ID: <8043@brl-tgr.ARPA> Date: Tue, 5-Feb-85 14:34:42 EST Article-I.D.: brl-tgr.8043 Posted: Tue Feb 5 14:34:42 1985 Date-Received: Fri, 8-Feb-85 02:05:53 EST Sender: news@brl-tgr.ARPA Organization: Ballistic Research Lab Lines: 12 Is there a widely accepted human-factors number on probability of typing error with either/both of the density variables being (1)time, (2)characters to be typed? Are there any good references on the subject? Thank you, Pat Sullivan DCEC Reston, VA