A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in exactly 17s?
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[2] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are more than 3? | |
[1] |
A wheel has 7 sections, each has a reward in dollars, from $1 through to $7.
What prize do we expect to get if we spin the wheel? | |
[1] | There are 10 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] |
Flip 7 coins.
What is the probability of getting 7 tails? | |
[1] | | You shoot an arrow at a target. There is a 70% chance of scoring a 20 and a 30% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
An obstacle course has 2 Fences and 1 Ditches. You have a 80% 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] | | You shoot an arrow at a target. There is a 10% chance of scoring a 20 and a 10% chance of scoring a 40 and a 80% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
We asked a group of humans how many Pillows they eat in a month. Here are the results:
What is the probability of the humans to eat more than 0 Pillows in a month? | |
[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.8 | 0.2 | | yellow | red | | Color |
Probability of Type
| | 0.8 | 0.2 | | wagon | sedan | | Type |
What is the probability of a car being a red sedan? | |
[2] |
Roll 90 6-sided dice.
How many times would you expect to get anything except 3? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.6 | 0.4 | | orange | pink | | Color |
Probability of Type
| | 0.8 | 0.2 | | sedan | wagon | | Type |
What is the probability of a car being a orange sedan? | |
[2] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.8 | | orange | green | yellow | | Color |
How many yellow balls were in the bag? | |
[1] | | You shoot an arrow at a target. You will either score 10 (40% chance), 30 (10% chance), or 60. What average score do you expect to get if you do this many times? | |
[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:
| | 0.6 | 0.15 | 0.1 | 0.1 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1? | |
[1] | A bag has 3 balls with number 3 and 8 balls with a number 4. You take out 1 ball.
What is the probability of getting the ball with the number 4? | |
[1] |
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