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 75%. For people who do not have a brother and smokers, the probability of lung cancer is 56%. For people who have a brother and nonsmokers, the probability of lung cancer is 54%. For people who have a brother and smokers, the probability of lung cancer is 30%. For people who do not have a brother and with low pollution, the probability of smoking is 93%. For people who do not have a brother and with high pollution, the probability of smoking is 68%. For people who have a brother and with low pollution, the probability of smoking is 57%. For people who have a brother and with high pollution, the probability of smoking is 27%. The overall probability of high pollution is 10%.
text_B: If we disregard the mediation effect through smoking, would having a brother positively affect lung cancer?
no.