Why is it now a challenge to use phone numbers for drawing a simple random sample?
a....
Mathematics, 14.01.2020 19:31 ste78
Why is it now a challenge to use phone numbers for drawing a simple random sample?
a. some people only have cellphones
b. some people have cellphones and landlines, so could be called twice
c. phone numbers are now portable so area codes do not always correspond to location
d. all of the above
Answers: 3
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