"Surveying every 5th woman who uses the copier isn't a fair sample. This method could miss women who don't use the copier or those who use it at different times, affecting the survey results. A proper random sample should choose people without any patterns."

Question

Make this a bit shorter and simpler but still with it's main point across.

Answer 1

"Surveying every 5th woman who uses the copier isn't fair because it may overlook those who don't use it or use it at different times. A good random sample should select people without any patterns."