ecommerce 100-Data Science Establish Universe and Sample Design


What are the three key factors of projection in below?

  • Sales conversion rate
  • Traffic big data
  • Non-coop retailers’ sales
  • Coop retailers’ sales
  • Brand distribution
  • Shop type

The sampling is stratified by shop types?

  • True
  • False

The Unique Visitor (UV) indicates the number of pages impressions to load a single web page of an Internet site?

  • True
  • False