There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.6 | | red | purple | green | | Color |
How many purple balls were in the bag? | |
[1] | A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score exactly 5? | |
[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] | Roll 18 6-sided dice.
How many times would you expect to get anything except 3? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in exactly 15s?
| |
[2] | A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score less than 3? | |
[2] |
A group of girls did a math test and here are their scores out of 5:
What is the probability of the girls to score less than 0? | |
[2] | A bag has 4 red balls and 8 blue balls. You take out 1 red ball, then another ball.
What is the probability of getting red for the second ball? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | orange | green | | Color |
Probability of Type
| | 0.7 | 0.3 | | sedan | wagon | | Type |
What is the probability of a car being a green sedan? | |
[2] | A wheel has 8 red sections and 2 orange sections.
What is the probability of getting orange? | |
[1] |
A bag has 2 balls with numbers from 5 to 6. You take out 1 ball.
What is the probability of NOT getting the ball with the number 4? | |
[1] | A bag has 2 balls with numbers from 2 to 3. You take out 1 ball.
What is the probability of NOT getting the ball with the number 4? | |
[1] |
Roll 54 6-sided dice.
How many times would you expect to get less than 6? | |
[1] | A wheel has 8 yellow sections and 6 blue sections.
What is the probability of getting blue? | |
[1] |
There are 8 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] |