Formula to find total students
= n(A) + n(B) - n(A intersection B)
Probability of any event is
= Number of favorable outcomes / Total number of outcomes.
Here students enrolled for Spanish are 261 = n(A)
Students enrolled for French are 153 = n(B)
Students enrolled for both the languages are 25 = n(A intersection B)
Total number of students enrolled are = 261 + 153 - 25 = 389
The probability for a student enrolled for both languages
= [tex] \frac{25}{389} [/tex]
Option B) is the right answer
