A carefully selected random sample:
a
is almost impossible to get.
b
...
History, 11.12.2020 04:20 meowmeowcow
A carefully selected random sample:
a
is almost impossible to get.
b
is an accurate predictor of election results.
c
is more accurate if it only includes wealthier voters.
d
is more accurate if it only includes urban dwellers.
Answers: 1
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