In a class of 30 students, 15 are studying French, 12 are studying Spanish, and 5 are studying both. What is the probability that a randomly chosen student is studying exactly one of French or Spanish?
Q1. In a class of 30 students, 15 are studying French, 12 are studying Spanish, and 5 are studying both. What is the probability that a randomly chosen student is studying exactly one of French or Spanish?
Answer: 17/30
Explanation: French only = 10 and Spanish only = 7, so exactly one language = 17 students out of 30.