Solve c)

Problem 1 (40 points): In QU, past statistics indicate that one out of four students has a library card. Answer the following with justification. ive b) (20 Doin c) (10 points) When the library is open early morning, what is the probability that the first student with the library card is the 5" student entering the library? What is the expected number of students until the 1" student with a library card arrives