A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score less than 0? | |
[2] | You roll 2 3-sided dice
You add the two numbers. What is the probability of getting 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:
| | 0.4 | 0.1 | 0.05 | 0.2 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 or smaller than 5? | |
[1] | A wheel has 7 sections, each a different color.
What is the probability of getting pink? | |
[1] |
There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.3 | 0.5 | | blue | pink | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple or blue? | |
[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 3 and smaller than 4? | |
[1] |
A bag has 6 balls with number 6 and 4 balls with a number 2. You take out 1 ball.
What is the probability of getting the ball with the number 2? | |
[1] | Roll 120 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
| You shoot an arrow at a target. There is a 70% chance of scoring a 20 and a 30% chance of scoring a 40. What average score do you expect to get if you do this many times? | |
[1] | The chances of feeling like icecream are 80%. The chances of being near an icecream store are 90%. There is a 10% chance that you lost all your money.
What is the probability of having icecream? | |
[1] |
Roll 90 6-sided dice.
How many times would you expect to get a number less than 5? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
If you choose a random ball from the bag, what is the probability of it being red or pink? | |
[1] |
A bag has 2 balls with number 5 and 9 balls with a number 4. You take out 1 ball.
What is the probability of getting the ball with the number 4? | |
[1] | A bag has 12 balls with numbers from 1 to 12. You take out 1 ball.
What is the probability of NOT getting the ball with the number 3? | |
[1] |
Roll 6 6-sided dice.
How many times would you expect to get an even 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 | 0.05 | | 0.2 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 4? | |
[1] |
A group of kids did a math test and here are their scores out of 5:
What fraction of the kids score less than 3? | |
[2] | | You shoot an arrow at a target. There is a 30% chance of scoring a 10 and a 20% chance of scoring a 30 and a 50% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
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