A bag has 4 red balls and 9 blue balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] | A group of kids did a math test and here are their scores out of 5:
What fraction of the kids score exactly 0? | |
[2] |
A bag has 4 red balls, 5 blue balls and 3 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] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | pink | orange | | Color |
Probability of Type
| | 0.1 | 0.9 | | wagon | sedan | | Type |
What is the probability of a car being a orange sedan? | |
[2] |
A bag has 8 balls with numbers from 5 to 12. You take out 1 ball.
What is the probability of getting the ball with the number 7? | |
[1] | We asked a group of boys how many Burgers they eat in a week. Here are the results:
What is the probability of the boys to eat exactly 1 Burgers in a week? | |
[2] |
A group of dogs did a math test and here are their scores out of 5:
What is the probability of the dogs to 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 bigger than 4 and smaller than 3? | |
[1] |
A group of people were timed running 100m. Here are the results:
What fraction of the people run 100m in less than 16s?
| |
[2] | A group of boys did a math test and here are their scores out of 5:
What fraction of the boys score exactly 0? | |
[2] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 6 and a head? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 1 and a tail? | |
[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:
| | 0.05 | 0.1 | 0.05 | 0.15 | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3 and smaller than 2? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
|