A bag has 5 balls with numbers from 1 to 5. You take out 1 ball.
What is the probability of NOT getting the ball with the number 0? | |
[1] | A group of girls did a math test and here are their scores out of 5:
What fraction of the girls score exactly 3? | |
[2] |
We asked a group of dogs how many Pillows they eat in a month. Here are the results:
What is the probability of the dogs to eat more than 0 Pillows in a month? | |
[2] | Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are less than 5? | |
[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:
| | 0.2 | 0.1 | 0.2 | 0.15 | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3 and smaller than 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 less than 3? | |
[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:
What is the probability of rolling a number that is smaller than 3? | |
[1] | A bag has 4 red balls, 8 blue balls and 7 yellow balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | blue | red | | Color |
Probability of Type
| | 0.5 | 0.5 | | wagon | sedan | | Type |
What is the probability of a car being a blue wagon? | |
[2] | A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score more than 3? | |
[2] |
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 1? | |
[2] | A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in exactly 15s?
| |
[2] |
| You shoot an arrow at a target. There is a 10% chance of scoring a 20 and a 40% chance of scoring a 30 and a 50% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |