Answer:
The sub-group that will most likely not be captured are those that do not read books at all, and hence, have no need to go to the bookstore.
Explanation:
The population which the researcher will come in contact with at the book store may not perfectly represent the true nature of the entire population being studied. This is because the sample space introduces some bias into the study.
The population that don’t read books will be elsewhere, not likely around the bookstore, and hence, outside his sample space. So therefore they will not be captured effectively by his study.
The researcher can use a more general location such as a market or train station as his research sample space. This will help reduce the bias, and help capture all the sub groups better.
