Smile

2013 graduate statistics, University of Maryland College Park.  Back row: Doug, Leslie, Matt, Ashley, Eric.  Front row: Bret, Kayla, Christine, Charlene, Karla, Laura, Julia, Gabi.  What is the probability of 13 people smiling simultaneously?

 Probability is very high given students are happy, UMCP, MD, 2013

Probability is very high given students are happy, UMCP, MD, 2013