n your readings, look for the main differences between probability sampling and nonprobability sample. What are some of the issues and errors in sampling with these methodologies?

Then, in Chapter $5,$ read Case Study $5\mathrm{.}1,$ "Insights Research Group," to prepare for the discussion.

Discussion Checklist:

How would you describe the sampling methodology in use?

What potential problems do you see arising from this technique?

Suggest an alternative sampling method that might give the National Lawncare and Landscape Association $($NLLA$)$ a better picture of the information desired.