Flip a coin 2 times.
Each time a head comes up you win $3 and with each tail you lose $4. How much money would you expect to make altogether? | |
[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 3? | |
[2] |
We asked a group of humans how many Strawberries they eat in a week. Here are the results:
humans
| |
| Strawberries | 0 | 3 | | 1 | 3 | | 2 | 5 | | 3 | 4 |
What fraction of the humans eat exactly 0 Strawberries in a week? | |
[2] | There are 28 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
A bag has 10 balls with numbers from 3 to 12. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 2? | |
[1] | A group of people were timed running 100m. Here are the results:
people
| |
| Time | 13 | 5 | | 14 | 4 | | 15 | 6 | | 16 | 2 | | 17 | 1 |
What fraction of the people run 100m in more than 16s?
| |
[2] |
An obstacle course has 1 Fences and 2 Ditches. You have a 90% chance of clearing a Fence and a 50% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] | We asked a group of kids how many Sandwiches they eat in a week. Here are the results:
What fraction of the kids eat more than 2 Sandwiches in a week? | |
[2] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a 6 or a 5 and a head? | |
[1] | We asked a group of humans how many Popsicles they eat in a day. Here are the results:
What is the probability of the humans to eat less than 3 Popsicles in a day? | |
[2] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | orange | blue | | Color |
Probability of Type
| | 0.3 | 0.7 | | wagon | sedan | | Type |
What is the probability of a car being a orange wagon? | |
[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:
| | 0.15 | 0.2 | 0.05 | 0.2 | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 or smaller than 5? | |
[1] |
A bag has 5 red balls, 5 green balls and 7 blue balls. You take out 1 ball.
What is the probability of getting a blue ball? | |
[1] | Roll 6 6-sided dice.
How many times would you expect to get more than 4? | |
[1] |
|