A bag has 7 red balls, 9 blue balls and 5 yellow balls. You take out a yellow ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | | 0.4 | | orange | yellow | purple | | Color |
If you choose a random ball from the bag, what is the probability of it being purple? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.9 | | red | purple | orange | | Color |
If you choose a random ball from the bag, what is the probability of it being orange? | |
[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 5 and smaller than 4? | |
[1] |
The weather forecast says that the chances of rain are 80%. Your chance of being outside today is 60%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[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 16s?
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[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 | | 0.2 | 0.1 | 0.55 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 5 and smaller than 3? | |
[1] | | You shoot an arrow at a target. There is a 60% chance of scoring a 10, a 30% 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] |
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:
| | 0.55 | 0.15 | 0.15 | 0.15 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 2? | |
[1] | A bag has 6 balls with numbers from 4 to 9. You take out 1 ball.
What is the probability of NOT getting the ball with the number 7? | |
[1] |
The chances of feeling like icecream are 80%. The chances of being near an icecream store are 50%. There is a 10% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
If you choose a random ball from the bag, what is the probability of it being red? | |
[1] |
The weather forecast says that the chances of rain are 50%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 60%.
What is the probability of getting wet today? | |
[1] | Roll 96 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
Roll 66 6-sided dice.
How many times would you expect to get an even number? | |
[1] | There are 30 balls in a bag. This is is the probability distribution of their color:
If you choose a random ball from the bag, what is the probability of it not being red? | |
[1] |
Roll 78 6-sided dice.
How many times would you expect to get more than 1? | |
[1] | Flip a coin 4 times.
Each time a head comes up you win $1 and with each tail you lose $3. How much money would you expect to make altogether? | |
[1] |
Flip 7 coins.
What is the probability of getting 7 heads? | |
[1] |