Roll 144 6-sided dice.
How many times would you expect to get 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:
| | 0.1 | 0.05 | 0.2 | 0.1 | 0.55 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 4 to 5? | |
[1] |
There are 2 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] | A group of humans were timed running 100m. Here are the results:
What is the probability of the humans to run 100m in exactly 16s?
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[2] |
| You shoot an arrow at a target. There is a 40% chance of scoring a 10, a 40% chance of scoring a 50, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] | There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.8 | 0.1 | 0.1 | | blue | purple | red | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple? | |
[1] |
| A bag has 3 balls with number 9 and 5 balls with a number 3. What will be the average of the numbers of the balls taken out of the bag | |
[1] | Roll 12 6-sided dice.
How many times would you expect to get more 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:
| | 0.2 | 0.05 | 0.1 | | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1 or smaller than 2? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.5 | 0.5 | | blue | yellow | | Color |
Probability of Type
| | 0.9 | 0.1 | | sedan | wagon | | Type |
What is the probability of a car being a blue wagon? | |
[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:
| | 0.65 | 0.15 | 0.15 | 0.05 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 4? | |
[1] | You roll 2 3-sided dice
You add the two numbers. What is the probability of getting exactly 2? | |
[1] |
A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in exactly 16s?
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[2] | A bag has 7 balls with numbers from 2 to 8. You take out 1 ball.
What is the probability of NOT getting the ball with the number 3? | |
[1] |
Roll 60 6-sided dice.
How many times would you expect to get less than or equal to 4? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | | 0.4 | | yellow | red | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being red or purple? | |
[1] |
| You shoot an arrow at a target. You will either score 20 (30% chance), 40 (40% chance), or 60. What average score do you expect to get if you do this many times? | |
[1] |