A(n) ___ sample is characterized by every element in the population having a known statistical likelihood of being selected.

A(n) ___ sample is characterized by every element in the population having a known statistical likelihood of being selected.

A(n) ___ sample is characterized by every element in the population having a known statistical likelihood of being selected.


a. irregular
b. probability
c. nonprobability
d. convenience
e. piggyback


ANSWER: b


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