Roll 1 6-sided die.
What is the probability of getting a 1? | |
[1] | Flip 2 coins.
What is the probability of getting 2 tails? | |
[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:
What is the probability of rolling a number that is bigger than or equal to 1? | |
[1] | Flip a coin 18 times.
Each time a head comes up you win $3 and with each tail you lose $1. It costs $24 to play (paid once). How much money would you expect to make altogether? | |
[1] |
| A bag has 2 balls with number 3 and 5 balls with a number 7. What will be the average of the numbers of the balls taken out of 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:
| | 0.6 | 0.25 | 0.05 | | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3 or smaller than 5? | |
[1] |
The weather forecast says that the chances of rain are 90%. The chance of remembering your umbrella is 70%. Your chance of being outside today are 50%.
What is the probability of getting wet today? | |
[1] | 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 2? | |
[2] |
A wheel has 5 purple sections and 8 yellow sections.
What is the probability of getting purple? | |
[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:
| | 0.65 | | 0.1 | 0.15 | 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] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.8 | | blue | pink | yellow | | Color |
How many blue balls were in the bag? | |
[1] | We asked a group of people how many Sandwiches they eat in a month. Here are the results:
What fraction of the people eat exactly 0 Sandwiches in a month? | |
[2] |
Roll 132 6-sided dice.
How many times would you expect to get more than or equal to 3? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.3 | 0.7 | | purple | pink | | Color |
Probability of Type
| | 1 | | wagon | sedan | | Type |
What is the probability of a car being a purple sedan? | |
[2] |
Roll 132 6-sided dice.
How many times would you expect to get an even number? | |
[1] | The weather forecast says that the chances of rain are 40%. The chance of remembering your umbrella is 70%. Your chance of being outside today are 80%.
What is the probability of getting wet today? | |
[1] |
Roll 78 6-sided dice.
How many times would you expect to get more than 2? | |
[1] |