A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in exactly 16s?
| |
[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | pink | orange | | Color |
Probability of Type
| | 0.6 | 0.4 | | sedan | wagon | | Type |
What is the probability of a car being a orange sedan? | |
[2] |
A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:
| | 0.55 | 0.1 | 0.25 | 0.05 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2? | |
[1] | Flip a coin 16 times.
Each time a head comes up you win $3 and with each tail you lose $4. How much money would you expect to make altogether? | |
[1] |
Roll 72 6-sided dice.
How many times would you expect to get more than or equal to 2? | |
[1] | We asked a group of kids how many Pillows they eat in a week. Here are the results:
What is the probability of the kids to eat less than 3 Pillows in a week? | |
[2] |
A bag has 3 red balls and 7 blue balls. You take out 1 ball.
What is the probability of getting a red ball? | |
[1] | A bag has 8 balls with numbers from 5 to 12. You take out 1 ball.
What is the probability of getting the ball with the number 11? | |
[1] |
| You shoot an arrow at a target. You will either score 10 (50% chance), 40 (30% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] | A bag has 5 balls with numbers from 4 to 8. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 8? | |
[1] |
A bag has 5 red balls and 3 blue balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] | A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:
| | 0.4 | 0.1 | 0.15 | 0.1 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 and smaller than 1? | |
[1] |
A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:
| | 0.25 | 0.2 | 0.2 | 0.2 | 0.15 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 4? | |
[1] | A bag has 3 balls with numbers from 1 to 3. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 0? | |
[1] |
A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:
What is the probability of rolling a number from 1 to 2? | |
[1] | A group of boys were timed running 100m. Here are the results:
What is the probability of the boys to run 100m in exactly 15s?
| |
[2] |
|