Aguy walks into a store and takes out a $100 bill from the register without the owner knowing. the guy then buys $70 worth of stuff using the same $100 bill and the owner gives $30 in change. how much money did the owner lose?

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

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?