With no explanation, label text_A→text_B with either "no" or "yes".
text_A: For people who do not have a brother and nonsmokers, the probability of lung cancer is 76%. For people who do not have a brother and smokers, the probability of lung cancer is 60%. For people who have a brother and nonsmokers, the probability of lung cancer is 61%. For people who have a brother and smokers, the probability of lung cancer is 34%. For people who do not have a brother and with low pollution, the probability of smoking is 97%. For people who do not have a brother and with high pollution, the probability of smoking is 67%. For people who have a brother and with low pollution, the probability of smoking is 53%. For people who have a brother and with high pollution, the probability of smoking is 24%. The overall probability of high pollution is 16%.
text_B: If we disregard the mediation effect through smoking, would having a brother positively affect lung cancer?
no.