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SOLVED:Select the best answer An example of a non sampling error that can reduce the accuracy of a sample survey is (a) using voluntary response to choose the sample. (b) using the telephone directory as the sampling frame. (c) interviewing people at shopping malls to obtain a sample. (d) variation due to chance in choosing a sample at random. (e) inability to contact many members of the sample.

Non-sampling errors can be minimized by taking large samples. - Economics | Shaalaa.com

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