Supose you want to collect data on how often people in your community use their new blue bin for recycling. You decide to ask the first 100 people you meet at an Enviroment Day event.
what bias might you expect from this sample?
math - Ms. Sue, Monday, October 26, 2009 at 4:55pm
People who don't recycle are not likely to attend an Enviroment Day event.
What bias would YOU expect?