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5. According to data released by the CDC, if the commute mm for a person is above average, then their overall health index (Y) tends to be below average. In other words, there is a negative association between X and Y. The most plausible explanation for this association is that: (1-5 pts) a. X causes Y. Thus, spending a longer time commuting will cause your health to deteriorate. b. Y causes X. Thus, being in poor health causes you to have longer commute times to and from work. c. the, association between X and Y is purely coincidental. It is implausible to believe the observed association could be anything other than accidental. d. W variables are probably present- For example, people that tend to have longer commutes probably have other lifestyle traits that are similar and are the real causes of their poor health