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 smaller than or equal to 3? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score exactly 4? | |
[2] |
We asked a group of people how many Apples they eat in a week. Here are the results:
What fraction of the people eat more than 1 Apples in a week? | |
[2] | A bag has 9 balls with numbers from 3 to 11. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 12? | |
[1] |
Roll 150 6-sided dice.
How many times would you expect to get an odd number? | |
[1] | Flip a coin 2 times.
Each time a head comes up you win $3 and with each tail you lose $3. How much money would you expect to make altogether? | |
[1] |
An obstacle course has 1 Fences and 2 Ditches. You have a 90% 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] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 1 and a tail? | |
[1] |
Flip a coin 16 times.
Each time a Tail comes up you win $2. It costs $28 to play (paid once). How much money would you expect to make altogether? | |
[1] | A wheel has 6 sections, each has a reward in dollars, from $1 through to $6.
What prize do we expect to get if we spin the wheel? | |
[1] |
Flip a coin 6 times.
Each time a head comes up you win $2 and with each tail you lose $4. How much money would you expect to make altogether? | |
[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:
| | 0.25 | 0.25 | 0.1 | 0.2 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 4 or 5? | |
[1] |
Flip a coin 10 times.
Each time a Head comes up you win $4. How much money would you expect to make altogether? | |
[1] | A group of kids did a math test and here are their scores out of 5:
What fraction of the kids score less than 0? | |
[2] |
A group of dogs did a math test and here are their scores out of 5:
What is the probability of the dogs to score exactly 3? | |
[2] | | You shoot an arrow at a target. There is a 50% chance of scoring a 20, a 20% chance of scoring a 50, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] |
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