We will use the notation that $\displaystyle {X}$ is a student's final course grade in their previous math class.  Here are the data for the 10 students in a statistics teacher's class.

Student	GPA
Katelyn	3.3
Alexei	3.4
Trinidad	3.3
Alexandria	3.1
Manuel	3.5
Joni	2.9
Kimberlé	3.9
Max	2.8
Jacy	3
Cheick	2.9

Using the indexing notation introduced in the textbook & videos, what value is meant by
$\displaystyle {X}_{\text{Trinidad}}=$

Note:  In general, we would have the data in some order, and we would index only on the order.  It is unlikely we would use an index of names...but the concept is the same.