<prompt> Translate the following text to SwahiliWe examine differences in postal density for rural areas and for densely populated areas to identify the effect of different delivery practices in each country.  <response>: Utafiti wa idadi ya barua za posta katika maeneo ya vijijini na maeneo yenye watu wengi unaonyesha kuwa idadi ya barua za posta katika maeneo ya vijijini ni kubwa. 