For the simple symmetric random walk pSnqn0,1,2,... with S0 0, show that PrS4 0s PrS3 1s (i) with using the probability mass functions of S4 and S3 from class, (ii) without using the probability mass functions of S4 and S3 from class. Hint: In this case, use the fact that PrS3 1s PrS3 1s due to symmetrie of the symmetric random walk (see also Problem 5.2).

Od. 130 degrees because if you add them together you get the 130

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.