Arturo Wants to Use a Probability Sample to Study the Potential

Multiple Choice

Arturo wants to use a probability sample to study the potential effects of health policies on infant mortality risk.To achieve this goal,the most important thing Arturo can do is to

A) use standardized questions in his survey.
B) get the largest sample he can acquire.
C) use randomization to select the sample.
D) only study populations with normally distributed mortality rates.