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 | 0.2 | 0.05 | 0.25 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 2 or 5? | |
[1] | A bag has 9 balls with number 4 and 6 balls with a number 4. You take out 1 ball.
What is the probability of getting the ball with the number 4? | |
[1] |
We asked a group of kids how many Oranges they eat in a day. Here are the results:
What is the probability of the kids to eat exactly 0 Oranges in a day? | |
[2] | A bag has 10 balls with numbers from 3 to 12. You take out 1 ball.
What is the probability of NOT getting the ball with the number 4? | |
[1] |
| You shoot an arrow at a target. There is a 60% chance of scoring a 30, a 30% chance of scoring a 40, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] | A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in more than 16s?
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[2] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a 4 and a head? | |
[1] | A group of boys were timed running 100m. Here are the results:
What is the probability of the boys to run 100m in exactly 17s?
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[2] |
An obstacle course has 2 Fences and 1 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] | A group of dogs did a math test and here are their scores out of 5:
What fraction of the dogs score more than 0? | |
[2] |
A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 0 | | 14 | 5 | | 15 | 0 | | 16 | 0 | | 17 | 2 |
What fraction of the people run 100m in exactly 14s?
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[2] | Roll 1 6-sided die.
What is the probability of NOT getting a 3? | |
[1] |
There are 25 balls in a bag. This is is the probability distribution of their color:
How many purple 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 | 0.25 | 0.1 | 0.15 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 3? | |
[1] |
A wheel has 7 sections, each has a reward in dollars, from $1 through to $7.
What prize do we expect to get if we spin the wheel? | |
[1] |