Probability basics practice answers
1. What is the probability of flipping a coin and getting heads?
- The probability is 1/2 or 50%.
2. What is the probability of rolling a 6 on a standard six-sided die?
- The probability is 1/6 or approximately 16.67%.
3. If you have a deck of cards, what is the probability of drawing a red card?
- There are 26 red cards in a deck of 52 cards, so the probability is 26/52 or 1/2.
4. If you have two dice, what is the probability of rolling a sum of 7?
- There are 6 possible outcomes that result in a sum of 7 out of a total of 36 outcomes when rolling two dice, so the probability is 6/36 or 1/6.
5. If you have a bag with 10 marbles, 3 of which are blue, what is the probability of randomly selecting a blue marble?
- The probability is 3/10 or 30%.