Given:
The table containing number of students and number of students who have license.
From the table,
[tex]\begin{gathered} In\text{ the year 2014} \\ 343-232=111\text{ seniors dont have license} \\ In\text{ the year 2015} \\ 360-244=116\text{ seniors dont have license} \\ In\text{ the year 2016,} \\ 310-210=100\text{ seniors dont have license} \\ In\text{ the year 2017,} \\ 378-258=120\text{ seniors dont have license} \\ It\text{ is obsered that there is no relation in the numb}er\text{ of senior with no license} \end{gathered}[/tex]
Now,
[tex]\begin{gathered} \frac{a}{100}\times343=232 \\ a=67.64\text{ percent} \\ \frac{a}{100}\times360=244 \\ a=67.78\text{ percent} \\ \frac{a}{100}\times310=210 \\ a=67.74\text{ percent} \\ \frac{a}{100}\times378=258 \\ a=68.25\text{ percent.} \end{gathered}[/tex]
It is observed that approximately 68 percent of the senior have license each year.