There are 10 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] | A bag has 2 red balls and 2 blue balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.8 | 0.2 | | | green | orange | red | | Color |
How many green balls were in the bag? | |
[1] | A bag has 6 balls with numbers from 3 to 8. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 5? | |
[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 | 0.15 | 0.15 | 0.2 | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 5 and smaller than 4? | |
[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 | | 0.2 | 0.55 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 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:
| | 0.8 | | 0.05 | 0.1 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1 and smaller than 3? | |
[1] | Roll 120 6-sided dice.
How many times would you expect to get an ugly number? | |
[1] |
Roll 30 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:
| | 0.05 | 0.25 | 0.25 | 0.25 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1 or smaller than 3? | |
[1] |
We asked a group of humans how many Pizzas they eat in a day. Here are the results:
What fraction of the humans eat exactly 4 Pizzas in a day? | |
[2] | There are 6 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] |
Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are less than 5? | |
[1] | | You shoot an arrow at a target. There is a 20% chance of scoring a 20 and a 40% chance of scoring a 40 and a 40% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] |
| You shoot an arrow at a target. There is a 40% chance of scoring a 10, a 30% chance of scoring a 40, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] | An obstacle course has 2 Fences and 1 Ditches. You have a 50% chance of clearing a Fence and a 90% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
A group of boys did a math test and here are their scores out of 5:
What fraction of the boys score less than 5? | |
[2] | Roll 12 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
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