You flip a coin and roll a 4 sided die.
What is the probability of getting a 5 and a head? | |
[1] | Roll a die 72 times.
How many times would you expect to get a 5? | |
[1] |
A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score exactly 3? | |
[2] | There are 22 balls in a bag. This is is the probability distribution of their color:
How many red balls were in 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:
What is the probability of rolling a number that is bigger than 3? | |
[1] | | You shoot an arrow at a target. You will either score 10 (20% chance), 30 (20% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
A group of kids were timed running 100m. Here are the results:
What is the probability of the kids to run 100m in more than 13s?
| |
[2] | A group of boys did a math test and here are their scores out of 5:
What fraction of the boys score exactly 5? | |
[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:
| | 0.35 | | 0.2 | 0.25 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 4? | |
[1] | The weather forecast says that the chances of rain are 30%. Your chance of being outside today is 70%. The chance of remembering your umbrella is 70%.
What is the probability of getting wet today? | |
[1] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.4 | 0.5 | | pink | purple | blue | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple or pink? | |
[1] | A bag has 7 red balls and 2 blue balls. You take out 1 blue ball, then another ball.
What is the probability of getting blue for the second ball? | |
[1] |
A bag has 7 red balls and 2 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] | A group of girls did a math test and here are their scores out of 5:
What is the probability of the girls to score less than 1? | |
[2] |
We asked a group of boys how many Hot dogs they eat in a week. Here are the results:
What is the probability of the boys to eat exactly 2 Hot dogs in a week? | |
[2] |