A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 2 | | 14 | 1 | | 15 | 3 | | 16 | 0 | | 17 | 2 |
What is the probability of the people to run 100m in less than 14s?
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[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 bigger than 4 and smaller than 3? | |
[1] |
You roll 2 3-sided dice
You add the two numbers. What is the probability of getting less than 5? | |
[1] | A group of kids did a math test and here are their scores out of 5:
What is the probability of the kids to score exactly 1? | |
[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:
| | 0.4 | | 0.1 | 0.25 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 3? | |
[1] | You flip a coin and roll a 10 sided die.
What is the probability of getting a 2 and a head? | |
[1] |
Roll 1 6-sided die.
What is the probability of NOT getting a 6? | |
[1] | We asked a group of humans how many Popsicles they eat in a month. Here are the results:
What fraction of the humans eat less than 0 Popsicles in a month? | |
[2] |
Flip a coin 8 times.
Each time a Tail comes up you win $4. It costs $10 to play (paid once). How much money would you expect to make altogether? | |
[1] | Roll 114 6-sided dice.
How many times would you expect to get more than or equal to 2? | |
[1] |
An obstacle course has 1 Fences and 2 Ditches. You have a 90% chance of clearing a Fence and a 80% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | pink | green | | Color |
Probability of Type
| | 0.4 | 0.6 | | wagon | sedan | | Type |
What is the probability of a car being a green sedan? | |
[2] |
Roll a die 60 times.
How many times would you expect to get a 5? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 1 or a 5 and a head? | |
[1] |
A group of humans were timed running 100m. Here are the results:
humans
| | 2 | 1 | 1 | 1 | 4 | | 13 | 14 | 15 | 16 | 17 | | Time |
What is the probability of the humans to run 100m in exactly 16s?
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[2] |