A wheel has 8 blue sections and 5 green sections.
What is the probability of getting green? | |
[1] | A bag has 8 red balls and 7 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | | 0.3 | | yellow | red | orange | | Color |
If you choose a random ball from the bag, what is the probability of it not being red or orange? | |
[1] | A group of dogs did a math test and here are their scores out of 5:
What fraction of the dogs score less than 0? | |
[2] |
A bag has 3 balls with numbers from 4 to 6. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 7? | |
[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:
| | 0.45 | 0.2 | 0.25 | 0.1 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3 and smaller than 2? | |
[1] |
A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in less than 16s?
| |
[2] | A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in less than 15s?
| |
[2] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.6 | | orange | blue | yellow | | Color |
How many blue balls were in the bag? | |
[1] | We asked a group of girls how many Oranges they eat in a week. Here are the results:
What is the probability of the girls to eat exactly 4 Oranges in a week? | |
[2] |
There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.5 | 0.2 | | yellow | red | pink | | Color |
If you choose a random ball from the bag, what is the probability of it not being yellow? | |
[1] | A bag has 9 red balls, 5 blue balls and 6 yellow balls. You take out a yellow ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
Roll 144 6-sided dice.
How many times would you expect to get less than 4? | |
[1] | A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in less than 16s?
| |
[2] |
There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.5 | | blue | purple | green | | Color |
If you choose a random ball from the bag, what is the probability of it being purple? | |
[1] |