Identify which method of data collection is described or would be best to use for the study. 53. A car company wants to determine the crash rating of a new model of vehicle. 54. A nutritionists wants to determine the effectiveness of a new diet. 55. A news organization wants to randomly call citizens to gauge opinions on a presidential election. Choices for 53-60: A) Experiment B) Observational study C) Survey D) Simulation 56. A research company wants to study smokers and nonsmokers to determine the effects of smoking on lung capacity.

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Q: 21) Find mzMKW 16 +2r 45. XL 10x + 5 23) Find mPSQ 27x + 4 -1+ 57x Poge

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Q: 45, 47

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Q: 11,12,13

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