Which of the following is TRUE concerning sampling errors? a. The degree of sampling error can be estimated. b. Sampling errors are frequently the most important errors that arise in research. c. It is difficult to estimate the size and effects of sampling errors.

Option b

Explanation:

They are most frequent errors that are applied in research, it offers the opportunity to determine if the system errors can be evaluated I.e if there are possible solutions to the errors when they occur, it offers the opportunity for the researcher to have carry out detailed research on the system and offers wide range of opportunity to test the systems in various forms. Without sample error, virtually the operation or efficiency of a system can't be determined.

50% i think

explanation:

idk if you found them already or not but you probably did but the one closer to sea level is raleigh.