how does the observed or of the association between migraine and cell phone use compare to the true or? group of answer choices the observed or suggests that migraine headache is associated with increased odds of frequent cell phone use, while the true or indicates that migraine is associated with reduced odds of frequent cell phone use. the observed or suggests that migraine headache is associated with reduced odds of frequent cell phone use, while the true or indicates that migraine is associated with increased odds of frequent cell phone use. both the observed and true ors indicate that migraine headache is associated with increased odds of frequent cell phone use. both the observed and true ors indicate no association between migraine headache and frequent cell phone use.