Flip 2 coins.
What is the probability of getting a head and a tail? | |
[1] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.5 | 0.1 | | green | blue | red | | Color |
How many green balls were in the bag? | |
[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 | | 0.05 | 0.1 | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 and smaller than 2? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | pink | green | | Color |
Probability of Type
| | 0.8 | 0.2 | | wagon | sedan | | Type |
What is the probability of a car being a pink sedan? | |
[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 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] |
Flip 1 coin.
What is the probability of getting a head? | |
[1] | Flip a coin 2 times.
Each time a Tail comes up you win $1. It costs $4 to play (paid once). How much money would you expect to make altogether? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.5 | 0.1 | | orange | green | pink | | Color |
How many orange balls were in the bag? | |
[1] | Flip a coin 10 times.
Each time a head comes up you win $2 and with each tail you lose $4. It costs $10 to play (paid once). How much money would you expect to make altogether? | |
[1] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.8 | | purple | blue | orange | | Color |
If you choose a random ball from the bag, what is the probability of it being purple or blue? | |
[1] | A group of humans were timed running 100m. Here are the results:
What fraction of the humans run 100m in less than 15s?
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[2] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.5 | | | orange | purple | green | | Color |
If you choose a random ball from the bag, what is the probability of it not being green or purple? | |
[1] | We asked a group of boys how many Chocolates they eat in a month. Here are the results:
What fraction of the boys eat more than 4 Chocolates in a month? | |
[2] |
A group of girls did a math test and here are their scores out of 5:
What is the probability of the girls to score more than 1? | |
[2] | You roll 2 3-sided dice
You add the two numbers. What is the probability of getting exactly 4? | |
[1] |
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