“the national occupant protection use survey (nopus) is the only probability-based survey of driver cell phone use in the united states. the survey observes usage as it actually occurs at a random selection of roadway sites, and so provides the best tracking of the extent to which people in this country are using cell phones while driving.” nopus observed 43,000 drivers in this study. which question is this observational study designed to answer?

I believe the answer is: What proportion of U.S. drivers talk on a cell phone while driving?

This purpose could be seen in this part of the description: survey observes usage as it actually occurs at a random selection of roadway. The researchers would most lilkely try to find the correlation between the number of drivers who talk at the cell phone while driving with an undesired event, such as accidents.

this is an outline for the decisions that frankie is going to make

opportunity cost

willingness to buy

price or quality

of course, there could be many economic strategies that should be considered important while making decision. opportunity cost is the foremost significant factor while considering any economic option. when you buy something, you should know how much you are forgoing for this product. indeed, you could buy something different with this measure if you changed your mind. willingness to buy shows how much surplus you are earning while making a decision. it is important because it shows you buy what you want or you buy because you have only limited amount of money. the price or quality can be considered as a general economic option that we are applying while buying something. when you buy something, price or quality could be one of the options. indeed, they define the characteristics of the product.    

mark brainliest!