There is a 10 floors building, 10 people get in the elevator in the ground floor and get off at each floor independently. What is the probability that the elevator stops at floor 5?
My answer is that because there are 10 floors so the probability that the elevator stops at floor 5 (same as floor 1,2,3,4..) is 1 - (9/10)
Is my answer correct here? I think it's too simple for this question.