Need bf? I got a Yt channel

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square