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] | A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in exactly 14s?
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[2] |
Flip 3 coins.
What is the probability of getting 3 heads? | |
[1] | A bag has 10 red balls, 4 blue balls and 5 yellow balls. You take out a yellow ball, then a red ball, then another ball.
What is the probability of getting yellow 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 | 0.2 | 0.05 | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 or smaller than 5? | |
[1] | The weather forecast says that the chances of rain are 30%. Your chance of being outside today is 60%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[1] |
There are 80 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | pink | blue | | Color |
Probability of Type
| | 0.9 | 0.1 | | sedan | wagon | | Type |
What is the probability of a car being a pink wagon? | |
[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 3 and smaller than 5? | |
[1] | An obstacle course has 1 Fences and 2 Ditches. You have a 90% chance of clearing a Fence and a 80% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.4 | 0.6 | | green | orange | | Color |
Probability of Type
| | 0.1 | 0.9 | | wagon | sedan | | Type |
What is the probability of a car being a orange sedan? | |
[2] | There are 30 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] |
A bag has 7 balls with number 5 and 5 balls with a number 6. You take out 1 ball.
What is the probability of getting the ball with the number 5? | |
[1] | | A bag has 4 balls with number 9 and 8 balls with a number 5. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
| You shoot an arrow at a target. There is a 10% chance of scoring a 20 and a 40% chance of scoring a 40 and a 50% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] | You roll a 8 sided die and a 3 sided die.
What is the probability of getting 4 on both dice? | |
[1] |
A bag has 11 balls with numbers from 2 to 12. You take out 1 ball.
What is the probability of NOT getting the ball with the number 13? | |
[1] |