Note: These Challenge Questions coincide with the Spring 2005 Reports Challenge Question #2 From: by way of Jane Duden Journey North <susamel@brounstein.com> Date: Tue Mar 08 2005 - 09:25:29 EST It's valuable to record zeros in the migration data because it can tell the average amount of time the whales surface during migration. The information tells us that there are more days than others that the whales usually surface. Iselin Middle School/7th grade Alexandra Abby S. Abbey O. Emily Received on Tue Mar 8 09:25:33 2005 Copyright 2005 Journey North. All Rights Reserved. Please send all questions, comments, and suggestions to jn-help@learner.org