(Answered) Rory elyse jason jodi and sarah are each going to host a

Statistics

Rory, Elyse, Jason, Jodi, and Sarah are each going to host a class party after each exam. The host for each party will be randomly selected to give a party after each one of the five exams.

If Elyse and Jodi are roommates, what is the probability that parties for these two students are back to back?

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