For the following observational studies, indicate whether they are prospective or retrospective. a) An airline was concerned that new security measures might discourage air travelers. They tracked the behavior of their frequent fliers after announcing new security restrictions to see whether frequent fliers flew fewer miles than they had before the restrictions. b) Does giving children a flu shot protect parents? Researchers questioned a random sample of families at the end of a flu season. They asked whether the children had been immunized, whether the parents had received flu shots, and who in the family had contracted the flu. a) Choose the correct answer below. Retrospective Prospective b) Choose the correct answer below. Retrospective O Prospective Try again Get more help MacBook Air A 20 828 44 DD F12 F3 F7 10 & W# 5 6 9 delete