The lengths of lumber a machine cuts are normally distributed with a mean of 87 inches and a standard deviation of 0.3 inch. (a) What is the probability that a randomly selected board cut by the machine has a length greater than 87.14 inches?​

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.