A bag contains 15 beads that are either red or yellow. The probability of randomly removing a red bead is 20%. What is the probability of randomly removing a yellow bead?
Since there are only two colors of beads in the bag (red and yellow), the total probability of removing either a red or yellow bead must add up to 100%.
Given that the probability of removing a red bead is 20%, the probability of removing a yellow bead can be calculated by subtracting the probability of removing a red bead from 100%:
100% - 20% = 80%
Therefore, the probability of randomly removing a yellow bead is 80%.