Thanks for all the answers; I'm still wanting to know the 3-person probability. In fact, if I take a true 24-hour period, I have FOUR students who share a 24-hour slot (three have birthdates on 8-9-89 and one on 8-10-89 but all within 24 hours of each other!).
Annette Annette Kujawski Taylor, Ph.D. Professor of Psychology University of San Diego 5998 Alcala Park San Diego, CA 92110 619-260-4006 [EMAIL PROTECTED] ---
