Johnny is standing next to a flag pole so his mom can take his picture. Johnny is 5 feet tall and his shadow is 4 feet long. The flag pole has a shadow of
47 feet. Find the height of the flag pole. Round to the nearest tenth of a foot.
The angle the hypotenuse and the shadows make with the ground form the
same angle.

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?