The diagram below represents three groups of students:
S (blue and green): The set of students who took a Spanish class.
T (green and orange): The set of students who traveled to a Spanish-speaking country.
D (red and orange): The set of students who did not take a Spanish class.

Each block represents one student.

Question

The diagram below represents three groups of students: 
S (blue and green): The set of students who took a Spanish class.
T (green and orange): The set of students who traveled to a Spanish-speaking country.
D (red and orange): The set of students who did not take a Spanish class.

Each block represents one student.

myrraarrym · Answer

If a student did not travel to a Spanish-speaking country, how many times more likely is it that the student did not take Spanish?