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 21%. For areas with high cigarette tax, the probability of normal infant birth weight is 34%. For areas with low cigarette tax, the probability of having a brother is 24%. For areas with high cigarette tax, the probability of having a brother is 58%.
text_B: Will having a brother decrease the chance of normal infant birth weight?
no.