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:
| | 0.45 | 0.1 | 0.05 | 0.2 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1? | |
[1] | There are 30 balls in a bag. This is is the probability distribution of their color:
How many purple balls were in the bag? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in less than 17s?
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[2] | A bag has 4 balls with number 6 and 9 balls with a number 7. You take out 1 ball.
What is the probability of getting the ball with the number 6? | |
[1] |
There are 30 balls in a bag. This is is the probability distribution of their color:
How many purple balls were in the bag? | |
[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 that is bigger than or equal to 3? | |
[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 that is bigger than 1? | |
[1] | Roll a die 84 times.
How many times would you expect to get a 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:
| | 0.55 | 0.1 | | 0.1 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 5 and smaller than 2? | |
[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:
| | 0.3 | 0.1 | 0.2 | 0.25 | 0.15 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 2? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What fraction of the people score more than 5? | |
[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:
What is the probability of rolling a number that is bigger than 4 and smaller than 5? | |
[1] |
A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in more than 15s?
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[2] | | You shoot an arrow at a target. There is a 10% chance of scoring a 20 and a 20% chance of scoring a 30 and a 70% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
The weather forecast says that the chances of rain are 80%. Your chance of being outside today is 90%. The chance of remembering your umbrella is 70%.
What is the probability of getting wet today? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 6 or a 5 and a head? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.2 | 0.5 | | red | purple | pink | | Color |
If you choose a random ball from the bag, what is the probability of it not being pink? | |
[1] |