Probability - 1. How many ways are there to choose 5 items (with repetition) from
among 7 varieties? Explain, as precisely as possible, why we should not
factor out by the number of arrangements of the 5 choice ...
Simple Arrangment Possibilities - 4 different math books, 2 different Chemistry books, and 6 different physics books are arranged on a shelf. How many different arrangements are possible if:
a.)The books in each particular subject m ...
Expected value - (See attached file for full problem description)
A coin shows heads with probability p. Let X_n be the number of flips required to obtain a run of n consecutive heads. Show that the expected value ...