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For each of the following situations, choose which type of bias we should be mos

ID: 3044622 • Letter: F

Question

For each of the following situations, choose which type of bias we should be most concerned about:

A survey about legalizing marijuana is sent out to a randomly selected sample of BC residents by mail and 4.7% of the surveys are returned:   

Convenience sampling bias
Undercoverage
Sampling error
Stratified random sample
Voluntary response bias
Bad sampling frame
Nonresponse bias(None of the above)

A pipeline company runs an ad in a newspaper asking people to sign in to their website to record their opinions about pipeline expansion:

Convenience sampling bias
Undercoverage
Sampling error
Stratified random sample
Voluntary response bias
Bad sampling frame
Nonresponse bias(None of the above)

A public opinion survey selects names from a city telephone

Convenience sampling bias
Undercoverage
Sampling error
Stratified random sample
Voluntary response bias
Bad sampling frame
Nonresponse bias(None of the above)

A marketing survey from a Vancouver-based clothing company that employees are asked to give to their friends and families:

Convenience sampling bias
Undercoverage
Sampling error
Stratified random sample
Voluntary response bias
Bad sampling frame
Nonresponse bias(None of the above)

Explanation / Answer

A survey about legalizing marijuana is sent out to a randomly selected sample of BC residents by mail and 4.7% of the surveys are returned: Voluntary sample bias. People interested in legalizing itwill respond.

2)Nonresponse bias

3)
Bad sampling frame

4)Convenience sampling bias
4)

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