Flip a coin 6 times.
Each time a Head comes up you win $4. How much money would you expect to make altogether? | |
[1] | The chances of feeling like icecream are 70%. The chances of being near an icecream store are 80%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[1] |
A bag has 10 balls with numbers from 3 to 12. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 10? | |
[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 | 0.25 | | 0.2 | 0.5 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 3 to 5? | |
[1] |
A group of humans did a math test and here are their scores out of 5:
What is the probability of the humans to score exactly 0? | |
[2] | A bag has 5 red balls and 4 blue balls. You take out a red ball, then a blue 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:
| | 0.7 | 0.1 | 0.15 | | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 4? | |
[1] | Roll 90 6-sided dice.
How many times would you expect to get less than 5? | |
[1] |
A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in exactly 16s?
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[2] | Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are less than 5? | |
[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:
| | 0.35 | 0.05 | 0.15 | 0.2 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 1? | |
[1] | An obstacle course has 1 Fences and 1 Ditches. You have a 80% chance of clearing a Fence and a 50% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | 0.1 | 0.3 | | pink | purple | blue | | Color |
How many blue balls were in the bag? | |
[1] | | You shoot an arrow at a target. You will either score 20 (10% chance), 40 (10% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
A wheel has 7 sections, each a different color.
What is the probability of getting purple? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 6 or a 5 and a head? | |
[1] |
There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.4 | 0.2 | | orange | blue | pink | | Color |
If you choose a random ball from the bag, what is the probability of it not being pink or blue? | |
[1] | Roll 90 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
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