With no explanation, label text_A→text_B with either "no" or "yes".
text_A: For patients not assigned the drug treatment, the probability of low cholesterol is 22%. For patients assigned the drug treatment, the probability of low cholesterol is 19%. For patients not assigned the drug treatment, the probability of having a sister is 66%. For patients assigned the drug treatment, the probability of having a sister is 31%.
text_B: Will having a sister increase the chance of low cholesterol?
yes.