A box contains 6 orange counters, 7 red counters, and 4 white counters. If one counter is chosen without looking, what is the probability that it is white?
- 6 orange counters
- 7 red counters
- 4 white counters
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 counters.
- Then count all possible outcomes: 6 + 7 + 4 = 17.
- Probability means favorable outcomes divided by total outcomes, so the probability is 4/17, which simplifies to 4/17.
The correct answer is 4/17. This matches the calculation or definition, so students should focus on the reasoning rather than only memorizing the final value.