Question 36 (1 point) Bias is a systematic error or departure from the truth. True False Question 37 (1 point) Saved Cohort studies & case-control studies are 2 secondary types of observational studies used for evaluating associations. True False Question 38 (1 point) Sample is a representative portion of that population. True O False Question 39 (1 point) Selection Bias "robo call polls" can be biased, have low response rates, and federal law prevents calls to cell phones. True False