Determine whether the sampling method described below appears to be sound or is flawed. in a survey of 729 subjects, each was asked how often he or she played sports. the survey subjects were internet users who responded to a question that was posted on a news website. choose the correct answer below. a. it appears to be sound because the data are not biased in any way. b. it is flawed because it is a census. c. it is flawed because it is a voluntary response sample. d. it is flawed because it is not statistically significant.