How many nickels and dimes are in $2.40 if there are two times more nickels than dimes? a) 12 nickels and 6 dimes b) 6 nickels and 12 dimes c) 24 nickels and 12 dimes d) 12 nickels and 24 dimes

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.