A bag contains two red beads and two green beads. You reach into the bag and pull out a bead, replacing it with a red bead regardless of the color you pulled out. What is the probability that all beads in the bag are red after three such replacements

probabilitythat all beads in the bag are red after three replacement is 1/8.probabilityof pulling out red bead = 2/4 = 1/2probabilityof pulling out second bead as red with repalcementprobabilityof pulling out the third bead with replacement which is also redprobabilitythat all beads in the bag are red after three replacementprobabilitythat all beads in the bag are red after three replacement is 1/8.probabilityhere: