A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score less than 2? | |
[2] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.3 | 0.3 | | orange | red | blue | | Color |
If you choose a random ball from the bag, what is the probability of it being orange? | |
[1] |
There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.8 | 0.2 | | | blue | purple | yellow | | Color |
If you choose a random ball from the bag, what is the probability of it not being yellow or purple? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.1 | 0.9 | | purple | pink | | Color |
Probability of Type
| | 1 | | | wagon | sedan | | Type |
What is the probability of a car being a purple sedan? | |
[2] |
There are 24 balls in a bag. This is is the probability distribution of their color:
| | 0.25 | 0.75 | | orange | purple | | Color |
How many orange balls were in the bag? | |
[1] | A group of boys did a math test and here are their scores out of 5:
What fraction of the boys score less than 0? | |
[2] |
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] | | You shoot an arrow at a target. There is a 60% chance of scoring a 20, a 20% chance of scoring a 60, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] |
The weather forecast says that the chances of rain are 20%. The chance of remembering your umbrella is 60%. Your chance of being outside today are 90%.
What is the probability of getting wet today? | |
[1] | Flip 2 coins.
What is the probability of getting a head and a tail? | |
[1] |
Flip a coin 4 times.
Each time a head comes up you win $3 and with each tail you lose $2. It costs $1 to play (paid once). How much money would you expect to make altogether? | |
[1] | A bag has 3 red balls, 9 green balls and 6 blue balls. You take out 1 ball.
What is the probability of getting a red ball or a green ball? | |
[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 4 and smaller than 3? | |
[1] | A group of humans were timed running 100m. Here are the results:
humans
| | 4 | 3 | 4 | 2 | 5 | | 13 | 14 | 15 | 16 | 17 | | Time |
What is the probability of the humans to run 100m in less than 16s?
| |
[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:
| | 0.15 | 0.15 | 0.25 | 0.45 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 and smaller than 3? | |
[1] | Flip a coin 6 times.
Each time a Head comes up you win $4. It costs $8 to play (paid once). How much money would you expect to make altogether? | |
[1] |
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