The probability distribution for a random variable x is given, find the probability that x is greater than or equal to 20

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.

Do,h = (7, 9) (14, 18) the scale factor is

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?