With no explanation, label text_A→text_B with either "no" or "yes".
text_A: For areas with low cigarette tax, the probability of normal infant birth weight is 24%. For areas with high cigarette tax, the probability of normal infant birth weight is 33%. For areas with low cigarette tax, the probability of having a brother is 16%. For areas with high cigarette tax, the probability of having a brother is 47%.
text_B: Will having a brother decrease the chance of normal infant birth weight?
no.