In this exercise, you are not required to answer all the questions before pressing "Verify".
Load into your work environment the data available at:
https://moodlesciences.univ-brest.fr/moodle/pluginfile.php/14315/question/questiontext/160840/2/1572575/data_voitures.csv?
time=1682605340879
Each row $i \in \{1, \dots, n\}$ in this dataset, represented by a matrix $\tilde{X}$, corresponds to a car (whose model is not specified).
Each column $j \in \{1, \dots, p\}$ corresponds to a variable that characterizes cars.
• Identify the qualitative variable of this dataset. What is the index of this qualitative variable? (Throughout the exercise, indices will
start at 1).