A bag has 5 red balls and 6 blue balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] | You flip a coin and roll a 3 sided die.
What is the probability of getting a 1 and a head? | |
[1] |
A wheel has 2 orange sections and 7 yellow sections.
What is the probability of getting orange? | |
[1] | Roll 138 6-sided dice.
How many times would you expect to get anything except 5? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | pink | green | | Color |
Probability of Type
| | 0.6 | 0.4 | | wagon | sedan | | Type |
What is the probability of a car being a green sedan? | |
[2] | A bag has 2 balls with numbers from 3 to 4. You take out 1 ball.
What is the probability of getting a ball with an even number? | |
[1] |
A wheel has 8 green sections and 7 blue sections.
What is the probability of getting green? | |
[1] | A group of kids were timed running 100m. Here are the results:
What is the probability of the kids to run 100m in less than 15s?
| |
[2] |
The weather forecast says that the chances of rain are 70%. Your chance of being outside today is 80%. The chance of remembering your umbrella is 40%.
What is the probability of getting wet today? | |
[1] | A bag has 6 balls with numbers from 5 to 10. You take out 1 ball.
What is the probability of NOT getting the ball with the number 7? | |
[1] |
A group of girls did a math test and here are their scores out of 5:
What fraction of the girls score less than 4? | |
[2] | Roll 2 6-sided dice.
You add the two numbers. What is the probability of getting 12? | |
[1] |
A group of dogs did a math test and here are their scores out of 5:
What fraction of the dogs score more than 1? | |
[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:
What is the probability of rolling a number that is smaller than or equal to 2? | |
[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 purple? | |
[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:
| | 0.25 | 0.1 | 0.1 | 0.2 | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 1 or 2? | |
[1] |
|