A wheel has 11 sections, each has a reward in dollars, from $1 through to $11.
What prize do we expect to get if we spin the wheel? | |
[1] | A group of people did a math test and here are their scores out of 5:
What fraction of the people score exactly 2? | |
[2] |
You roll a 6 sided die and a 3 sided die.
What is the probability of getting 4 on both dice? | |
[1] | We asked a group of girls how many Pizzas they eat in a week. Here are the results:
What is the probability of the girls to eat exactly 4 Pizzas in a week? | |
[2] |
We asked a group of boys how many Bowls of Ramen they eat in a day. Here are the results:
boys
| |
| Bowls of Ramen | 0 | 3 | | 1 | 1 | | 2 | 3 | | 3 | 6 |
What fraction of the boys eat exactly 2 Bowls of Ramen in a day? | |
[2] | Roll 72 6-sided dice.
How many times would you expect to get a number more than 2? | |
[1] |
There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.5 | 0.2 | | orange | green | pink | | Color |
How many pink balls were in the bag? | |
[1] | The weather forecast says that the chances of rain are 80%. Your chance of being outside today is 80%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What fraction of the people score more than 5? | |
[2] | An obstacle course has 1 Fences and 2 Ditches. You have a 50% 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 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 from 1 to 5? | |
[1] | Roll 66 6-sided dice.
How many times would you expect to get a number less than 1? | |
[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 2? | |
[1] | Roll 1 6-sided die.
What is the probability of NOT getting a 5? | |
[1] |
A group of boys were timed running 100m. Here are the results:
What is the probability of the boys to run 100m in more than 17s?
| |
[2] |