A popular movie for children was showing in the local movie theater. One showing was completely sold out and every seat was occupied. The ratio of adults to children at this showing was 2:5. If there are 140 seats in the theater, how many of these seats were occupied by adults?

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?