Math Guy over at NPR Math Guy: The Birthday Problem Math Guy over at NPR Math Guy over at NPR Birthday Problem Explained http://www.npr.org/templates/story/story.php?storyId=4542341 "Math Guy" Math Guy Math Guy over at NPR March 19, 2005. Math Guy over at NPR http://www.npr.org/templates/story/story.php?storyId=4542341 Math Guy Math Guy over at NPR http://www.npr.org/templates/story/story.php?storyId=4542341 The Birthday Problem someone else