There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | yellow | red | pink | | Color |
If you choose a random ball from the bag, what is the probability of it being pink? | |
[1] | A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in more than 16s?
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[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 2? | |
[1] | Roll 72 6-sided dice.
How many times would you expect to get more than 3? | |
[1] |
The weather forecast says that the chances of rain are 60%. Your chance of being outside today is 40%. The chance of remembering your umbrella is 40%.
What is the probability of getting wet today? | |
[1] | Roll 36 6-sided dice.
How many times would you expect to get more than or equal to 6? | |
[1] |
We asked a group of kids how many Burgers they eat in a month. Here are the results:
What fraction of the kids eat exactly 4 Burgers in a month? | |
[2] | A group of humans were timed running 100m. Here are the results:
What fraction of the humans run 100m in exactly 16s?
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[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 from 4 to 5? | |
[1] | | You shoot an arrow at a target. You will either score 10 (30% chance), 40 (30% chance), or 60. What average score do you expect to get if you do this many times? | |
[1] |
Flip a coin 10 times.
Each time a head comes up you win $3 and with each tail you lose $2. It costs $4 to play (paid once). How much money would you expect to make altogether? | |
[1] | Roll 144 6-sided dice.
How many times would you expect to get 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:
| | 0.15 | 0.1 | 0.1 | | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 or smaller than 5? | |
[1] | A group of people were timed running 100m. Here are the results:
people
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| Time | 13 | 4 | | 14 | 2 | | 15 | 1 | | 16 | 4 | | 17 | 4 |
What fraction of the people run 100m in less than 15s?
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[2] |
| You shoot an arrow at a target. You will either score 20 (20% chance), 40 (40% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] | | A bag has 4 balls with number 2 and 3 balls with a number 7. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
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