Two friends are working on losing weight. one
weighs 175 pounds and loses about 1.5 pounds per
week. the other weighs 187 pounds and loses
about 2 pounds per week. at this rate, how many
weeks until they both weigh the same amount?
how much will they weigh at that time?

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?