Application Exercises The graphs show the percentage of high school seniors who had ever used alcohol or marijuana. The data can be described by the following mathematical models: Using this information to solve Exercises 55-56. a. Use the appropriate line graph to estimate the percentage of seniors who used alcohol in 2014. b. Use the appropriate formula to determine the percentage of seniors who used alcohol in 2014. How does this compare with your estimate in part (a)? c. Use the appropriate line graph to estimate the percentage of seniors who used marijuana in 2014. d. Use the appropriate formula to determine the percentage of seniors who used marijuana in 2014. How does this compare with your estimate in part (c)? e. For the period from 1990 through 2014, in which year was alcohol use by seniors at a maximum? Estimate the percentage of seniors who used marijuana in that year.
Application Exercises The graphs show the percentage of high school seniors who had ever used alcohol or marijuana. The data can be described by the following mathematical models: Using this information to solve Exercises 55-56. a. Use the appropriate line graph to estimate the percentage of seniors who used alcohol in 2014. b. Use the appropriate formula to determine the percentage of seniors who used alcohol in 2014. How does this compare with your estimate in part (a)? c. Use the appropriate line graph to estimate the percentage of seniors who used marijuana in 2014. d. Use the appropriate formula to determine the percentage of seniors who used marijuana in 2014. How does this compare with your estimate in part (c)? e. For the period from 1990 through 2014, in which year was alcohol use by seniors at a maximum? Estimate the percentage of seniors who used marijuana in that year.
Solution Summary: The objective here is to determine the percentage of seniors who used alcohol in year 2014 by using the appropriate line graph.
The graphs show the percentage of high school seniors who had ever used alcohol or marijuana.
The data can be described by the following mathematical models:
Using this information to solve Exercises 55-56.
a. Use the appropriate line graph to estimate the percentage of seniors who used alcohol in 2014.
b. Use the appropriate formula to determine the percentage of seniors who used alcohol in 2014. How does this compare with your estimate in part (a)?
c. Use the appropriate line graph to estimate the percentage of seniors who used marijuana in 2014.
d. Use the appropriate formula to determine the percentage of seniors who used marijuana in 2014. How does this compare with your estimate in part (c)?
e. For the period from 1990 through 2014, in which year was alcohol use by seniors at a maximum? Estimate the percentage of seniors who used marijuana in that year.
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