Given: A large manufacturing company models the no of workers it hired each year after 2010 using the function shown in the graph.
Required: To find out approximately how many workers were hired in 2019.
Explanation: From the graph, we can see that the year 2019 lies on the x-axis at x=9. At x=9, the value of the function is approximately 350.
Now,
[tex]r^2=0.56[/tex]
It means that the 56% of the variability in the outcome of the data can not be explained. It can be described as moderate. A value of 0.75 and above is considered good, whereas 0.25 is considered weak.
Final Answer: a) The company hired approximately 350 workers.
b) The function is not a good model for the data.
