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The two basic sources for error when using random sampling are: a. sampling and selection O b. identification and selection c. linear and nonlinear d. sampling and nonsampling Oe. bias and randomness
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Answer is d.sampling and nonsampling

There are two type of basic sources of error that can occure when you sample randomly from a population:sampaling error and nonsampling error

sampling error is the inveitable result of basing an inference on a random sample rather than on the entire population.

Non samplaing error is the nonresponse bias and nontruthful responses

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