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 85%. For people who do not have a brother and smokers, the probability of lung cancer is 63%. For people who have a brother and nonsmokers, the probability of lung cancer is 66%. For people who have a brother and smokers, the probability of lung cancer is 39%. For people who do not have a brother and with low pollution, the probability of smoking is 81%. For people who do not have a brother and with high pollution, the probability of smoking is 60%. 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 30%. The overall probability of high pollution is 7%.
text_B: If we disregard the mediation effect through smoking, would having a brother negatively affect lung cancer?
yes.