There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | | 0.8 | | purple | blue | yellow | | Color |
If you choose a random ball from the bag, what is the probability of it being purple or blue? | |
[1] | | You shoot an arrow at a target. There is a 60% chance of scoring a 20 and a 40% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
A bag has 3 red balls, 3 green balls and 5 blue balls. You take out 1 ball.
What is the probability of getting a red ball or a blue 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 2 and smaller than 1? | |
[1] |
The chances of feeling like icecream are 60%. The chances of being near an icecream store are 80%. There is a 10% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.5 | | yellow | green | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being yellow? | |
[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 3 or smaller than 4? | |
[1] | A bag has 7 red balls and 9 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
There are 30 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] | A bag has 7 balls with numbers from 1 to 7. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 5? | |
[1] |
There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | 0.1 | 0.3 | | yellow | green | blue | | Color |
How many yellow 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:
What is the probability of rolling a number that is bigger than 4 or smaller than 5? | |
[1] |
Flip 2 coins.
What is the probability of getting a head and a tail? | |
[1] | Roll 108 6-sided dice.
How many times would you expect to get more than or equal to 1? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score exactly 3? | |
[2] | A bag has 11 balls with numbers from 2 to 12. You take out 1 ball.
What is the probability of getting the ball with the number 12? | |
[1] |
There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.2 | 0.3 | | red | yellow | purple | | Color |
If you choose a random ball from the bag, what is the probability of it being yellow? | |
[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 or equal to 2? | |
[1] |
Flip a coin 16 times.
Each time a Head comes up you win $3. It costs $24 to play (paid once). How much money would you expect to make altogether? | |
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