Understanding Probability — 7th Grade

Understanding Probability — 7th Grade

1. The probability of rolling a die and getting a 4 is _____ .
2. An event with a probability of 0.9 is considered _____ .
3. If you flip a coin 100 times and get heads 45 times, the relative frequency of heads is _____ .
4. The probability of drawing a red card from a standard deck is _____ .
5. If an event is equally likely to happen or not, its probability is _____ .
6. If the theoretical probability of an event is 0.2, you would expect it to occur approximately _____ times in 100 trials.
7. The probability of rolling an even number on a die is _____ .
8. An event with a probability of 0.01 is considered _____ .
9. If you observe 30 out of 100 attempts resulting in success, the experimental probability is _____ .
10. In a bag of 10 marbles, if 3 are blue, the theoretical probability of picking a blue marble is _____ .
11. When comparing theoretical probability to observed frequency, a large difference indicates _____ .
12. If you toss a fair coin 100 times and get tails 60 times, the observed probability of tails is _____ .