News Math Toss Out the Toss-Up: Bias in heads-or-tails Share this:FacebookTwitterPocketRedditPrintEmail By Erica Klarreich February 25, 2004 at 11:39 am This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe