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 7%. For areas with high cigarette tax, the probability of normal infant birth weight is 22%. For areas with low cigarette tax, the probability of having a brother is 6%. For areas with high cigarette tax, the probability of having a brother is 49%.
text_B: Will having a brother decrease the chance of normal infant birth weight?
no.