There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.4 | 0.5 | | red | blue | orange | | Color |
How many blue balls were in the bag? | |
[1] | Flip 2 coins.
What is the probability of getting 2 tails? | |
[1] |
An obstacle course has 2 Fences and 1 Ditches. You have a 90% 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 group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score more than 3? | |
[2] |
There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.3 | 0.4 | | purple | orange | blue | | Color |
If you choose a random ball from the bag, what is the probability of it being purple or blue? | |
[1] | A bag has 10 red balls and 6 blue 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] |
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:
| | 0.4 | 0.15 | 0.1 | 0.15 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 1 or 4? | |
[1] | There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | 0.2 | 0.1 | | pink | purple | orange | | Color |
How many orange balls were in the bag? | |
[1] |
We asked a group of kids how many Strawberries they eat in a day. Here are the results:
What is the probability of the kids to eat exactly 2 Strawberries in a day? | |
[2] | A bag has 5 balls with numbers from 1 to 5. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 1? | |
[1] |
| You shoot an arrow at a target. There is a 90% chance of scoring a 10 and a 10% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] | | You shoot an arrow at a target. There is a 60% chance of scoring a 20 and a 40% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
A wheel has 5 blue sections and 2 pink sections.
What is the probability of getting pink? | |
[1] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | | 0.8 | | purple | green | yellow | | Color |
If you choose a random ball from the bag, what is the probability of it not being green? | |
[1] |
Roll 6 6-sided dice.
How many times would you expect to get an odd number? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | blue | purple | | Color |
Probability of Type
| | 0.2 | 0.8 | | wagon | sedan | | Type |
What is the probability of a car being a purple sedan? | |
[2] |
A wheel has 7 yellow sections and 8 green sections.
What is the probability of getting green? | |
[1] |