A bag has 9 balls with numbers from 4 to 12. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 6? | |
[1] | | A bag has 7 balls with number 8 and 9 balls with a number 2. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in more than 14s?
| |
[2] | Roll 96 6-sided dice.
How many times would you expect to get more than or equal to 3? | |
[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 | | 0.05 | 0.25 | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2? | |
[1] | There are 36 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] |
| You shoot an arrow at a target. There is a 50% chance of scoring a 20, a 40% chance of scoring a 60, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] | We asked a group of boys how many Bowls of Ramen they eat in a week. Here are the results:
boys
| | 5 | 2 | 6 | 2 | | 0 | 1 | 2 | 3 | | Bowls of Ramen |
What fraction of the boys eat exactly 2 Bowls of Ramen in a week? | |
[2] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.1 | 0.9 | | pink | yellow | | Color |
Probability of Type
| | 0.2 | 0.8 | | sedan | wagon | | Type |
What is the probability of a car being a yellow sedan? | |
[2] | Roll 2 6-sided dice.
You add the two numbers. What is the probability of getting 12? | |
[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:
| | 0.55 | | 0.1 | 0.15 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 1? | |
[1] | A group of people were timed running 100m. Here are the results:
people
| | 3 | 5 | 2 | 3 | 5 | | 13 | 14 | 15 | 16 | 17 | | Time |
What fraction of the people run 100m in less than 13s?
| |
[2] |
We asked a group of kids how many Strawberries they eat in a month. Here are the results:
What fraction of the kids eat exactly 2 Strawberries in a month? | |
[2] | An obstacle course has 1 Fences and 1 Ditches. You have a 80% chance of clearing a Fence and a 100% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
A bag has 6 balls with numbers from 1 to 6. You take out 1 ball.
What is the probability of NOT getting the ball with the number 7? | |
[1] |