A box contains 2 purple tiles, 4 white tiles, and 7 green tiles. If one tile is chosen without looking, what is the probability that it is white?
- 2 purple tiles
- 4 white tiles
- 7 green tiles
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 4 white tiles.
- Then count all possible outcomes: 2 + 4 + 7 = 13.
- Probability means favorable outcomes divided by total outcomes, so the probability is 4/13, which simplifies to 4/13.
The correct answer is 4/13. This matches the calculation or definition, so students should focus on the reasoning rather than only memorizing the final value.