A problem with a mail survey compared to other survey methods is:

Question

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A problem with mail surveys is that they often have a low response rate, leading to a biased sample of individuals who did respond. This can be due to many factors, such as the survey getting lost in the mail or respondents simply not having the time or motivation to fill it out. As a result, the data collected from a mail survey may not accurately represent the population being studied.

A Problem with a Mail Survey Compared to Other Survey