A bag has 5 balls with numbers from 5 to 9. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 4? | |
[1] | A bag has 3 balls with numbers from 2 to 4. You take out 1 ball.
What is the probability of NOT getting the ball with the number 5? | |
[1] |
There are 40 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.5 | 0.3 | | yellow | blue | pink | | Color |
If you choose a random ball from the bag, what is the probability of it being yellow? | |
[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 2? | |
[1] | Roll 1 6-sided die.
What is the probability of getting a 2? | |
[1] |
We asked a group of people how many Strawberries they eat in a day. Here are the results:
people
| | 4 | | 5 | 5 | | 0 | 1 | 2 | 3 | | Strawberries |
What fraction of the people eat exactly 1 Strawberries in a day? | |
[2] | There are 80 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 6 balls with number 3 and 8 balls with a number 5. What will be the average of the numbers of the balls taken out of the bag | |
[1] | Flip a coin 8 times.
Each time a Head comes up you win $3. How much money would you expect to make altogether? | |
[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 from 1 to 5? | |
[1] | An obstacle course has 1 Fences and 1 Ditches. You have a 100% 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 bag has 5 balls with number 1 and 6 balls with a number 5. What will be the average of the numbers of the balls taken out of the bag | |
[1] | A group of people were timed running 100m. Here are the results:
people
| | 5 | 6 | 6 | 4 | 1 | | 13 | 14 | 15 | 16 | 17 | | Time |
What is the probability of the people to run 100m in exactly 16s?
| |
[2] |
There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | | 0.6 | | blue | yellow | orange | | Color |
How many blue 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:
| | 0.15 | 0.2 | 0.2 | 0.15 | 0.3 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 4 or 5? | |
[1] |
| You shoot an arrow at a target. There is a 50% chance of scoring a 20, a 20% chance of scoring a 60, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] | | A bag has 8 balls with number 9 and 7 balls with a number 4. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
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