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:
| | 0.2 | 0.25 | 0.1 | 0.2 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4? | |
[1] | Roll 120 6-sided dice.
How many times would you expect to get 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:
| | 0.2 | | 0.25 | 0.15 | 0.4 | | 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 70%. Your chance of being outside today is 70%. The chance of remembering your umbrella is 40%.
What is the probability of getting wet today? | |
[1] |
| A bag has 5 balls with number 8 and 8 balls with a number 6. What will be the average of the numbers of the balls taken out of the bag | |
[1] | We asked a group of people how many Strawberries they eat in a month. Here are the results:
What is the probability of the people to eat exactly 0 Strawberries in a month? | |
[2] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number less than 2 and a head? | |
[1] | A wheel has 10 sections, each with a different reward.
What is the probability of getting a Pocky? | |
[1] |
A wheel has 9 sections, each has a reward in dollars, from $1 through to $9.
What prize do we expect to get if we spin the wheel? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are 1 or 4? | |
[1] |
We asked a group of dogs how many Apples they eat in a month. Here are the results:
What is the probability of the dogs to eat less than 1 Apples in a month? | |
[2] | | You shoot an arrow at a target. There is a 40% chance of scoring a 30, a 30% 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] |
Roll 24 6-sided dice.
How many times would you expect to get more than or equal to 1? | |
[1] | Flip a coin 8 times.
Each time a Tail comes up you win $3. How much money would you expect to make altogether? | |
[1] |
Roll 2 6-sided dice.
You add the two numbers. What is the probability of getting 12? | |
[1] | A bag has 5 red balls, 4 blue balls and 3 yellow balls. You take out a yellow ball, then a blue ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
Flip a coin 18 times.
Each time a Tail comes up you win $3. It costs $20 to play (paid once). How much money would you expect to make altogether? | |
[1] | Flip a coin 4 times.
Each time a head comes up you win $2 and with each tail you lose $3. How much money would you expect to make altogether? | |
[1] |
|