Roll 108 6-sided dice.
How many times would you expect to get less than 2? | |
[1] | A bag has 7 red balls and 5 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
There are 16 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] | | A bag has 7 balls with number 3 and 7 balls with a number 8. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in less than 17s?
| |
[2] | The weather forecast says that the chances of rain are 70%. Your chance of being outside today is 60%. You flip a coin to decide whether to take your umbrella.
What is the probability of getting wet today? | |
[1] |
The weather forecast says that the chances of rain are 90%. The chance of remembering your umbrella is 60%. Your chance of being outside today are 80%.
What is the probability of getting wet today? | |
[1] | Flip a coin 10 times.
How many times would you expect to get Heads? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.1 | 0.9 | | purple | green | | Color |
Probability of Type
| | 1 | | | wagon | sedan | | Type |
What is the probability of a car being a purple wagon? | |
[2] | 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 | 0.25 | 0.15 | 0.5 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 2? | |
[1] |
A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score exactly 3? | |
[2] | We asked a group of boys how many Hot dogs they eat in a month. Here are the results:
What is the probability of the boys to eat exactly 1 Hot dogs in a month? | |
[2] |
There are 45 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] | The weather forecast says that the chances of rain are 90%. Your chance of being outside today is 90%. The chance of remembering your umbrella is 40%.
What is the probability of getting wet today? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.3 | 0.4 | | orange | blue | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple or orange? | |
[1] | Roll 1 6-sided die.
What is the probability of getting a number smaller than 5? | |
[1] |
|