Roll 138 6-sided dice.
How many times would you expect to get more than 2? | |
[1] | A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in more than 13s?
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[2] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.4 | 0.6 | | yellow | red | | Color |
Probability of Type
| | 0.8 | 0.2 | | sedan | wagon | | Type |
What is the probability of a car being a yellow wagon? | |
[2] | Roll 54 6-sided dice.
How many times would you expect to get more than 6? | |
[1] |
There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.4 | 0.4 | | blue | green | red | | Color |
If you choose a random ball from the bag, what is the probability of it being blue or green? | |
[1] | A bag has 6 balls with numbers from 5 to 10. You take out 1 ball.
What is the probability of NOT getting the ball with the number 10? | |
[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 | 0.05 | 0.1 | 0.7 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 and smaller than 5? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are 1 or 4? | |
[1] |
| You shoot an arrow at a target. There is a 90% chance of scoring a 10 and a 10% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] | We asked a group of kids how many Chocolates they eat in a week. Here are the results:
What fraction of the kids eat more than 3 Chocolates in a week? | |
[2] |
You roll a 5 sided die and a 3 sided die.
What is the probability of getting 4 on both dice? | |
[1] | Flip a coin 4 times.
Each time a head comes up you win $4 and with each tail you lose $3. It costs $8 to play (paid once). How much money would you expect to make altogether? | |
[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 | 0.15 | 0.05 | 0.2 | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 3? | |
[1] | There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | 0.1 | 0.2 | | red | blue | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple or blue? | |
[1] |
A bag has 3 red balls, 6 blue balls and 9 yellow balls. You take out a red ball, then a blue ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] | Flip 7 coins.
What is the probability of getting 7 tails? | |
[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 smaller than 4? | |
[1] |