# Real-Life Application : Examples of Data Modeled Using a Linear Formula

Find an article through newspapers, magazines, professional journals, etc and find at least two examples of data that are best modeled using linear formulae. Describe the importance of each example and why a linear model is appropriate for the data. Note that we are referring to a linear model not simply a time chart where dots are connected by line segments.

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Programs to Increase Helmet Use

Education

Background

Despite the clear and what should be convincing data regarding the effectiveness of bicycle helmets, few people across the United States and in most parts of the world (children included) can be observed wearing bicycle helmets. The latest estimates (1994) of helmet ownership and helmet use among children in the United States are 50.2% and 25.0%, respectively.11 Helmet use varies widely across the country, due to the local variation in educational campaigns and presence of helmet laws. Telephone surveys of helmet use tend to overestimate actual use compared to observational surveys. Education of bicycle helmet effectiveness in preventing head injury is one popular method used in the attempt to increase (and sustain) bicycle helmet use. Education interventions can be community-based, school-based, physician-based, or some ...

#### Solution Summary

An article is found through a journal that shows two examples of data that are best modeled using a linear formula.