Question: When you see an ad on TV for a body-shaping product (e.g., an abdominal muscle machine), often a person with a wonderful success story is featured in the ad. The statement "individual results may vary" hints at what kind of data the advertisement may be presenting.
a. What kind of data is being presented in these ads?
b. What statistics could be presented to help inform the public about how much "individual results might vary"?