A bowl contains 3 red, 8 blue, and 7 black beads. Margaret randomly selects 3 beads one after the other without replacement. Find the probability of getting a red, blue, and black bead, in that order.

Total number of beads = 3 + 8 + 7 = 18. P (red) = total number of red/total number of beads = 3/18 = 1/6. P (blue) = total number of blue beads/total number of beads left after replacement = 8/17. P (black) = total number of black beads/total number of beads left after replacement = 7/16. Therefore P (red) = 1/6. P (blue) = 8/17. P (black) = 7/16.