possibility tree
One box contains two black balls (labeled B1 and B2) and onewhite ball. A second box contains one black ball and two whiteballs (labeled W1 and W2). Suppose the following experiment isperformed: One of the two boxes is chosen at random. Next a ball israndomly chosen from the box. Then a second ball is chosen atrandom from the same box without replacing the first ball.
a. Construct the possibility tree showing all possible outcomesof this experiment.
b. What is the total number of outcomes of this experiment?