Flip 3 coins.
What is the probability of getting 3 tails? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.5 | 0.5 | | purple | yellow | | Color |
Probability of Type
| | 0.7 | 0.3 | | sedan | wagon | | Type |
What is the probability of a car being a purple 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:
| | 0.05 | 0.25 | 0.2 | 0.2 | 0.3 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 and smaller than 3? | |
[1] | A bag has 8 balls with number 7 and 2 balls with a number 9. You take out 1 ball.
What is the probability of getting the ball with the number 7? | |
[1] |
A bag has 10 red balls, 6 green balls and 7 blue balls. You take out 1 ball.
What is the probability of NOT getting a blue ball? | |
[1] | Roll 144 6-sided dice.
How many times would you expect to get more than 2? | |
[1] |
We asked a group of kids how many Oranges they eat in a month. Here are the results:
What fraction of the kids eat exactly 1 Oranges in a month? | |
[2] | | You shoot an arrow at a target. You will either score 10 (10% chance), 30 (30% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
Roll 12 6-sided dice.
How many times would you expect to get less than 1? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.3 | 0.2 | | purple | red | blue | | Color |
If you choose a random ball from the bag, what is the probability of it not being red? | |
[1] |
Roll 66 6-sided dice.
How many times would you expect to get an odd number? | |
[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:
| | 0.5 | 0.2 | 0.05 | 0.2 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 2? | |
[1] |
A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in exactly 14s?
| |
[2] | A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in exactly 16s?
| |
[2] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.5 | 0.5 | | blue | red | | Color |
Probability of Type
| | 1 | | wagon | sedan | | Type |
What is the probability of a car being a red wagon? | |
[2] |