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 less than 3? | |
[2] | A bag has 4 balls with number 6 and 2 balls with a number 6. You take out 1 ball.
What is the probability of getting the ball with the number 6? | |
[1] |
An obstacle course has 2 Fences and 1 Ditches. You have a 50% 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 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 4? | |
[1] |
A bag has 2 balls with numbers from 4 to 5. You take out 1 ball.
What is the probability of getting a ball with an even number? | |
[1] | You roll a 9 sided die and a 4 sided die.
What is the probability of getting 5 on both dice? | |
[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 | 0.25 | 0.25 | 0.05 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than or equal to 4? | |
[1] | A bag has 2 red balls and 4 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 5 red balls, 6 blue balls and 4 yellow balls. You take out a yellow ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] | A group of girls did a math test and here are their scores out of 5:
What fraction of the girls score less than 2? | |
[2] |
There are 50 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 being pink or red? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 6 and a head? | |
[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 smaller than or equal to 1? | |
[1] | You roll a 3 sided die and a 8 sided die.
What is the probability of getting 4 on both dice? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | pink | red | | Color |
Probability of Type
| | 0.7 | 0.3 | | sedan | wagon | | Type |
What is the probability of a car being a pink sedan? | |
[2] | | You shoot an arrow at a target. There is a 20% chance of scoring a 10 and a 20% chance of scoring a 40 and a 60% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a 3 or a 5 and a head or a tail? | |
[1] |