Phone directories are sometimes used for sampling frames. Go to www.reversephonedirectory.com and put in a phone number

Question:

Phone directories are sometimes used for sampling frames. Go to www.reversephonedirectory.com and put in a phone number of someone you know in the reverse phone search (the number must be a listed number to get results). Comment on the accuracy of the information and the appropriateness of phone directories as a representative sample.