A weight-loss clinic advertised that last month its patients, on average, lost 8 1b. Assuming that average refers to the mean, which of the following claims must be true based on this information? Note: More than one statement could be true. If none of the statements is true, mark the appropriate box. Two months ago some of their patients lost at least 8 1b. X ? 0 Last month all of their patients lost at least 8 1b. Last month at least one of their patients lost more than 12 1b. O Last month fewer than half of their patients lost 8 lb or less. |Last month at least one of their patients lost exactly 8 1b. O None of the above statements are true