Question: Please include all calculations/working and write the formula + type of distribution before plugging in values into equations, thanks so much! Exercise 32.6. Happy birthday.

Please include all calculations/working and write the formula + type of distribution before plugging in values into equations, thanks so much!

Exercise 32.6. Happy birthday. It is your birthday and you are waiting for someone to write a \"Happy Birthday\" message on your Facebook wall. Your waiting time is approximately Exponential with average waiting time of 10 minutes between such postings; assume that the times of the postings are inde pendent. a. What is the probability that the next posting takes 15 minutes or longer to appear? b. What is the standard deviation of the time in between consecutive Happy Birthday messages? 0. Suppose that the most recent posting was done at 1:40 PM, and it is now 1:45 PM (i.e., no postings have been made during the last ve minutes). What is the expected time for the next message to appear

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