There are 70 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.4 | 0.5 | | green | red | pink | | Color |
If you choose a random ball from the bag, what is the probability of it being red or pink? | |
[1] |
We asked a group of people how many Popsicles they eat in a month. Here are the results:
What fraction of the people eat more than 3 Popsicles in a month? | |
[2] | | You shoot an arrow at a target. You will either score 10 (20% chance), 40 (30% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
Roll 1 6-sided die.
What is the probability of getting an even number? | |
[1] | An obstacle course has 2 Fences and 1 Ditches. You have a 50% chance of clearing a Fence and a 80% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
There are 60 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in exactly 14s?
| |
[2] |
We asked a group of dogs how many Bowls of Ramen they eat in a day. Here are the results:
dogs
| |
| Bowls of Ramen | 0 | 1 | | 1 | 3 | | 2 | 1 | | 3 | 5 |
What is the probability of the dogs to eat less than 0 Bowls of Ramen in a day? | |
[2] | There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.3 | 0.2 | | red | pink | purple | | Color |
If you choose a random ball from the bag, what is the probability of it being pink or red? | |
[1] |
There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.2 | 0.3 | | blue | purple | orange | | Color |
If you choose a random ball from the bag, what is the probability of it being purple or blue? | |
[1] | Flip a coin 4 times.
Each time a head comes up you win $1 and with each tail you lose $2. How much money would you expect to make altogether? | |
[1] |
Flip a coin 4 times.
Each time a head comes up you win $1 and with each tail you lose $4. How much money would you expect to make altogether? | |
[1] | Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are even? | |
[1] |
You roll 2 3-sided dice
You add the two numbers. What is the probability of getting more than or equal to 6? | |
[1] | A group of humans were timed running 100m. Here are the results:
humans
| | 5 | 4 | 2 | 4 | 3 | | 13 | 14 | 15 | 16 | 17 | | Time |
What fraction of the humans run 100m in less than 14s?
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[2] |
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