1 1 vote Consider an urn with $a$ red and $b$ blue balls. Balls are drawn out one-by-one, without replacement and uniformly at random, until the first red ball is drawn. What is the expected total number of balls drawn by this process? (Hint: Consider deriving an appropriate recurrence.) $\frac{a+b}{a+1}$ $\frac{a+b+1}{a}$ $\frac{a+b}{a}$ $\frac{a+b+1}{a+1}$ $a$ Probability and Statistics tifrece2019 probability-and-statistics expectation + – admin 241 views answer comment Share Follow Add Sync Questions Print 0 reply Please log in or register to add a comment.
