Roll 30 6-sided dice.
How many times would you expect to get an odd number? | |
[1] | There are 50 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] |
Flip 2 coins.
What is the probability of getting 2 tails? | |
[1] | The chances of feeling like icecream are 70%. The chances of being near an icecream store are 90%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[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 or smaller than 4? | |
[1] | Roll 1 6-sided die.
What is the probability of getting a number bigger than or equal to 1? | |
[1] |
Roll 72 6-sided dice.
How many times would you expect to get more than 3? | |
[1] | Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are even? | |
[1] |
A group of humans were timed running 100m. Here are the results:
| Time | humans | | 13 | 2 | | 14 | 2 | | 15 | 0 | | 16 | 1 | | 17 | 3 |
What is the probability of the humans to run 100m in less than 14s?
| |
[2] | Roll 150 6-sided dice.
How many times would you expect to get less than or equal to 2? | |
[1] |
| A bag has 9 balls with number 1 and 6 balls with a number 5. What will be the average of the numbers of the balls taken out of the bag | |
[1] | The chances of feeling like icecream are 50%. 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] |
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 3 or 4? | |
[1] | | You shoot an arrow at a target. There is a 20% chance of scoring a 20 and a 20% chance of scoring a 30 and a 60% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[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 | 0.2 | 0.1 | 0.15 | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 4? | |
[1] | A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 1 | | 14 | 2 | | 15 | 2 | | 16 | 3 | | 17 | 0 |
What fraction of the people run 100m in less than 15s?
| |
[2] |
A wheel has 15 sections, each a different color.
What is the probability of getting orange? | |
[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 | 0.15 | 0.15 | 0.55 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 4? | |
[1] |
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