You flip a quarter. What is the probability of landing on tails?
1/2 or 0.5 or 50%
What percent is "certain" on the probability scale?
100%
A spinner has equal sections numbered 1-6. What is the probability of spinning a 3?
1/6 or 0.1666... or 16.7%
What percent is "impossible" on the probability scale?
0%
If Tim randomly selects a book to read, what is the probability that it will be a biography?
1/2 or 0.5 or 50%
The classic wood carousel at Carousel Park in Hampton, VA has 32 jumping horses and 16 standing horses.
What is the probability of randomly selecting a jumping horse first and then selecting a standing horse?
2/9 or 0.22... or 22.2%
What percent is "equally likely"?
50%
A grocery store has 4 raspberry yogurts, 6 strawberry yogurts, and 2 vanilla yogurts.
If you pick a yogurt at random, what is the probability of getting raspberry?
1/3 or 0.333... or 33%
A bag of jolly ranchers has 7 apple, 8 blue raspberry, 10 grape, and 5 cherry.
If you pick at random, what is the probability of getting cherry?
Define "dependent event."
When one event occurs and that item is not replaced before the second event occurs.