Page 390 - NUMINO_WB_6B
P. 390
186-S1-2
2. There are 4 white and 3 red marbles inside the bag. Each of three people, Ann,
Ricky, and Kate, take turns to draw a marble in order. The first person to pick a
red marble wins. Find the probability that Ricky will win. (A marble drawn from the
bag cannot go back inside the bag).
R W
R
W WR
WW
2. There are 4 white and 3 red marbles inside the bag. Each of three people, Ann,
Ricky, and Kate, take turns to draw a marble in order. The first person to pick a
red marble wins. Find the probability that Ricky will win. (A marble drawn from the
bag cannot go back inside the bag).
R W
R
W WR
WW
