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Suppose that the Central Pacific Railroad numbers its locomotives sequentially, from 1 to N (the number of trains its has). Southern Pacific, a competing railroad,

Suppose that the Central Pacific Railroad numbers its locomotives sequentially, from 1 to N (the number of trains its has). Southern Pacific, a competing railroad, does not know N and wants to estimate it. They send one of their employees, Sara, to estimate this number.

B. What is the posterior expected value of N, again based on the information above?

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