7. A clerk entering salary data into a company spreadsheet accidentally put in an extra "0" in a vice-president's salary, listing it as $2,000,000 instead of $200,000 a) Explain, in as much detail as possible, how this error might affect the mean and the mean absolute deviation of the company payroll. b) Explain, in as much detail as possible, how this error might affect the median and interquartile range of the company payroll. c) Suppose that the clerk accidentally left a "0" off the vice-president's salary, inputting it as $20,000 instead of $200,000. Which statistics - the mean, the mean absolute deviation, the median, and the interquartile range - are likely to be affected?

8. The data in the diagram is taken from a 2010 US National Health and Wellness Survey of 75,000 randomly selected Americans on the characteristics of chronic obstructive pulmonary disease (COPD). The researchers were attempting to differentiate among the treatments and outcomes of COPD, chronic bronchitis, and emphysema. Use the diagram to answer these questions. a) What is the probability of randomly selecting a person who was diagnosed with chronic bronchitis and COPD and emphysema? b) What is the probability of randomly selecting a person who was diagnosed with COPD? c) What is the probability of randomly selecting a person who was diagnosed with chronic bronchitis or emphysema?