qno 2

QUESTION 4: 4-. Every day you get between 1 and [T -- {Dz} emails. (a) If you consider (lDz+4jI consecutive days. how many combinations of possible incom- ing emails per clay are there (not total consider the quantity of emails as numbers}? Justify your answer. [2] (b) If you consider (ID, + 4] conseCutiue days, how many ways are there to get at least (ID, + 2} days with (7 1D?) emails per day? Justify your answer. [3] (c) What is the mean of the probability distribution if we are looking at the number of times you get ID! emails per day after (ng + 2) consecutive days {the number of emaiis each day have the same probability}. Justify your answer. [5] For each question that has letters such as \"31 etc use the following: ID1=1 ID1=2 |Da=7 ID4=4 ID5=B ID5=B