A box contains 9 red beads, 4 purple beads, and 1 white beads. If one bead is chosen without looking, what is the probability that it is white?
- 9 red beads
- 4 purple beads
- 1 white beads
Choose the best answer.
Note
For basic probability, compare the number of favorable outcomes with the total number of equally likely outcomes.
- Count the favorable outcomes first: there are 1 white beads.
- Then count all possible outcomes: 9 + 4 + 1 = 14.
- Probability means favorable outcomes divided by total outcomes, so the probability is 1/14, which simplifies to 1/14.
The correct answer is 1/14. This matches the calculation or definition, so students should focus on the reasoning rather than only memorizing the final value.