There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.2 | 0.5 | | red | green | pink | | Color |
If you choose a random ball from the bag, what is the probability of it being green? | |
[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 3? | |
[1] |
There are 20 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] | We asked a group of humans how many Burgers they eat in a month. Here are the results:
What fraction of the humans eat exactly 3 Burgers in a month? | |
[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 1? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a number less than 6 and a head? | |
[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:
| | 0.3 | 0.1 | 0.25 | 0.15 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 1 or 3? | |
[1] | A bag has 4 balls with numbers from 5 to 8. You take out 1 ball.
What is the probability of getting a ball with a number more than 7? | |
[1] |
A bag has 9 red balls, 9 blue balls and 10 yellow balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.8 | 0.2 | | purple | yellow | | Color |
Probability of Type
| | 0.8 | 0.2 | | sedan | wagon | | Type |
What is the probability of a car being a yellow sedan? | |
[2] |
Roll 132 6-sided dice.
How many times would you expect to get an even number? | |
[1] | A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 15s?
| |
[2] |
A bag has 9 balls with number 4 and 6 balls with a number 5. You take out 1 ball.
What is the probability of getting the ball with the number 5? | |
[1] | You roll 2 3-sided dice
You add the two numbers. What is the probability of getting less than 6? | |
[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:
| | 0.5 | 0.15 | | 0.1 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 2? | |
[1] | A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in exactly 15s?
| |
[2] |
|