A box contains 5 yellow cards, 8 blue cards, and 6 red cards. If one card is chosen without looking, what is the probability that it is blue?
- 5 yellow cards
- 8 blue cards
- 6 red cards
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 8 blue cards.
- Then count all possible outcomes: 5 + 8 + 6 = 19.
- Probability means favorable outcomes divided by total outcomes, so the probability is 8/19, which simplifies to 8/19.
The correct answer is 8/19. This matches the calculation or definition, so students should focus on the reasoning rather than only memorizing the final value.