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Mathematics 23 Online
OpenStudy (anonymous):

PLEASE HELP WILL MEDAL AND FAN!! Identify the type of sample used. An electronics store sends out a survey to the people on its mailing list asking them about their favorite brands of televisions. A. convenience B. simple random D. systematic

jimthompson5910 (jim_thompson5910):

It's a convenience sample since it's the easiest to do. Simply pick all of the people in the list and send them a survey. This is definitely not a representative way though because of volunteer response bias. A simple random sample is much better.

OpenStudy (anonymous):

can someone help me in another one

OpenStudy (anonymous):

Identify the type of sample used. A computer generates a random list of telephone numbers to call to survey people about telephone fees.

jimthompson5910 (jim_thompson5910):

your thoughts?

OpenStudy (anonymous):

Identify the type of sample used. A computer generates a random list of telephone numbers to call to survey people about telephone fees. A. convenience B. simple random C. stratified random D. systematic

jimthompson5910 (jim_thompson5910):

any ideas?

OpenStudy (anonymous):

not really cause i am not sure

jimthompson5910 (jim_thompson5910):

A computer generates a RANDOM list of telephone numbers to call to survey people about telephone fees.

OpenStudy (anonymous):

so whats the answer

jimthompson5910 (jim_thompson5910):

I gave you a big hint

OpenStudy (anonymous):

@jim_thompson5910 is it C

jimthompson5910 (jim_thompson5910):

no it's simple random because they just simply pick names/numbers at random. No strata are created

OpenStudy (anonymous):

ooh ok tnx

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