A raid leader has to setup this week's schedule. Her team always raids two times a week at the same time, but the team is flexible and can raid any of the 7 days during the lockout. However, she knows from the past that it is always a disaster if she schedules two consecutive days.
A.) So how many different schedules can she create that do not include two consecutive raid nights during the lockout?
B.) If she is equally likely to choose any of the possible schedules (from A), what are the chances her raid team would be raiding Tue & Thur this week?