There are 25 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | Roll 6 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
A bag has 4 balls with numbers from 4 to 7. You take out 1 ball.
What is the probability of getting the ball with the number 5? | |
[1] | The weather forecast says that the chances of rain are 70%. 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] |
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:
| | 0.55 | 0.05 | | 0.2 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 3? | |
[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 | 0.15 | 0.2 | 0.05 | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 1? | |
[1] |
| A bag has 8 balls with number 3 and 7 balls with a number 9. What will be the average of the numbers of the balls taken out of the bag | |
[1] | There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.8 | | purple | yellow | red | | Color |
If you choose a random ball from the bag, what is the probability of it not being red? | |
[1] |
Roll 132 6-sided dice.
How many times would you expect to get anything except 2? | |
[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 | 0.15 | 0.15 | 0.05 | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.1 | 0.9 | | blue | pink | | Color |
Probability of Type
| | 0.7 | 0.3 | | wagon | sedan | | Type |
What is the probability of a car being a pink wagon? | |
[2] | A bag has 2 red balls and 2 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] |
Flip 7 coins.
What is the probability of getting 7 tails? | |
[1] | There are 100 balls in a bag. This is is the probability distribution of their color:
If you choose a random ball from the bag, what is the probability of it not being red? | |
[1] |
We asked a group of dogs how many Icecreams they eat in a day. Here are the results:
What fraction of the dogs eat more than 0 Icecreams in a day? | |
[2] | The weather forecast says that the chances of rain are 60%. Your chance of being outside today is 90%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[1] |
Roll 18 6-sided dice.
How many times would you expect to get more than or equal to 2? | |
[1] | Roll 2 6-sided dice.
You add the two numbers. What is the probability of getting 2? | |
[1] |
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