There are 16 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] | You roll 2 3-sided dice
You add the two numbers. What is the probability of getting exactly 4? | |
[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 | 0.05 | 0.15 | 0.05 | 0.7 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 4 to 5? | |
[1] | Flip a coin 6 times.
Each time a Tail comes up you win $3. How much money would you expect to make altogether? | |
[1] |
| A bag has 3 balls with number 3 and 8 balls with a number 1. What will be the average of the numbers of the balls taken out of the bag | |
[1] | An obstacle course has 1 Fences and 1 Ditches. You have a 80% chance of clearing a Fence and a 90% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[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 5? | |
[2] | We asked a group of humans how many Hot dogs they eat in a day. Here are the results:
What is the probability of the humans to eat less than 3 Hot dogs in a day? | |
[2] |
The weather forecast says that the chances of rain are 20%. The chance of remembering your umbrella is 60%. Your chance of being outside today are 60%.
What is the probability of getting wet today? | |
[1] | Roll 54 6-sided dice.
How many times would you expect to get an even number? | |
[1] |
There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.2 | 0.7 | | red | orange | yellow | | Color |
How many red balls were in the bag? | |
[1] | There are 16 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] |
We asked a group of girls how many Pillows they eat in a month. Here are the results:
What fraction of the girls eat less than 4 Pillows in a month? | |
[2] | A group of kids did a math test and here are their scores out of 5:
What fraction of the kids score more than 2? | |
[2] |
A bag has 5 red balls and 10 blue balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] | A bag has 4 balls with number 6 and 5 balls with a number 7. You take out 1 ball.
What is the probability of getting the ball with the number 7? | |
[1] |
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