There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.5 | 0.1 | | red | blue | yellow | | Color |
If you choose a random ball from the bag, what is the probability of it being blue or red? | |
[1] | Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are more than 3? | |
[1] |
| You shoot an arrow at a target. There is a 50% chance of scoring a 10, a 30% chance of scoring a 50, 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 9 red balls and 2 blue balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
Flip 7 coins.
What is the probability of getting 7 tails? | |
[1] | We asked a group of humans how many Strawberries they eat in a month. Here are the results:
What is the probability of the humans to eat exactly 1 Strawberries in a month? | |
[2] |
You flip a coin and roll a 8 sided die.
What is the probability of getting a 2 and a head? | |
[1] | A group of people were timed running 100m. Here are the results:
What fraction of the people run 100m in more than 14s?
| |
[2] |
We asked a group of humans how many Oranges they eat in a month. Here are the results:
What fraction of the humans eat more than 1 Oranges in a month? | |
[2] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | yellow | blue | red | | Color |
If you choose a random ball from the bag, what is the probability of it being red or blue? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score exactly 5? | |
[2] | Flip a coin 18 times.
Each time a head comes up you win $3 and with each tail you lose $2. How much money would you expect to make altogether? | |
[1] |
Flip a coin 10 times.
How many times would you expect to get Tails? | |
[1] | A group of girls did a math test and here are their scores out of 5:
What fraction of the girls score exactly 5? | |
[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:
| | 0.5 | 0.15 | 0.15 | 0.2 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3? | |
[1] |