A bag has 2 balls with numbers from 2 to 3. You take out 1 ball.
What is the probability of getting the ball with the number 3? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | blue | pink | | Color |
Probability of Type
| | 0.5 | 0.5 | | sedan | wagon | | Type |
What is the probability of a car being a pink wagon? | |
[2] |
A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 16s?
| |
[2] | A bag has 2 balls with number 5 and 9 balls with a number 2. You take out 1 ball.
What is the probability of getting the ball with the number 5? | |
[1] |
A wheel has 10 sections, each has a reward in dollars, from $1 through to $10.
What prize do we expect to get if we spin the wheel? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.8 | 0.2 | | 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 group of people were timed running 100m. Here are the results:
people
| |
| Time | 13 | 3 | | 14 | 1 | | 15 | 3 | | 16 | 2 | | 17 | 2 |
What fraction of the people run 100m in exactly 15s?
| |
[2] | A bag has 9 balls with number 8 and 9 balls with a number 4. You take out 1 ball.
What is the probability of getting the ball with the number 4? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in less than 17s?
| |
[2] | A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in exactly 17s?
| |
[2] |
There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.6 | | red | purple | orange | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple or orange? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | pink | purple | | Color |
Probability of Type
| | 0.5 | 0.5 | | sedan | wagon | | Type |
What is the probability of a car being a purple sedan? | |
[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:
| | 0.3 | 0.2 | 0.15 | 0.2 | 0.15 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 2 to 5? | |
[1] |