How many times greater is the perimeter of triangle ABC than that of triangle DEF? (Note: Do NOT include a label or unit in your answer.)

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

What is the difference between the predicted value and the actual value

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.