Help me determine chance of encountering a question

[wiseheart]

Okay, help me those of magnificent math skills.

I had to take an final consisting of 50 questions.
The professor said the final drew from a question
bank of 700 questions.

In order to study, we are advised to review 13 practice
exams. Each which have 10 questions. I took each quiz
an average of 10 times for a total of 130 quiz attempts.

Question Bank=700 Questions
Final=50 questions
Quiz=10 questions
#of quizzes=13
Attemptsateach=10

What is the probability of encountering all 700 questions
or what is my expected amount of questions to have encountered?

Ok go! Thanks!