A flagpole at a right angle to the horizontal is located on a slope that makes an angle of 15° with the horizontal. The flagpole casts a 150 meter shadow down the slope when the angle of elevation of the sun is 20° What is the nearest length of the flagpole to the nearest tenth of a meter?

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?