There are 20 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[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:
What is the probability of rolling a 4? | |
[1] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | yellow | orange | red | | Color |
If you choose a random ball from the bag, what is the probability of it being yellow? | |
[1] | There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.9 | | pink | orange | green | | Color |
How many green balls were in the bag? | |
[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 | 0.15 | 0.1 | 0.2 | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 2 or 5? | |
[1] | A wheel has 12 sections, each has a reward in dollars, from $1 through to $12.
What prize do we expect to get if we spin the wheel? | |
[1] |
There are 70 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] | A bag has 9 red balls and 2 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] |
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 | | 0.25 | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 1 to 3? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | yellow | pink | | Color |
Probability of Type
| | 1 | | sedan | wagon | | Type |
What is the probability of a car being a pink sedan? | |
[2] |
We asked a group of girls how many Peaches they eat in a day. Here are the results:
What is the probability of the girls to eat less than 4 Peaches in a day? | |
[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:
| | 0.25 | 0.05 | | 0.2 | 0.5 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 2? | |
[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 | 0.1 | | 0.15 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 or smaller than 5? | |
[1] | Flip a coin 6 times.
Each time a head comes up you win $4 and with each tail you lose $3. How much money would you expect to make altogether? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in more than 17s?
| |
[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 3? | |
[1] |
| A bag has 3 balls with number 9 and 6 balls with a number 4. What will be the average of the numbers of the balls taken out of the bag | |
[1] |