A group of humans did a math test and here are their scores out of 5:
What is the probability of the humans to score less than 2? | |
[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 | 0.15 | 0.2 | | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 4? | |
[1] |
We asked a group of dogs how many Pizzas they eat in a week. Here are the results:
What fraction of the dogs eat exactly 2 Pizzas in a week? | |
[2] | A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in exactly 14s?
| |
[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:
| | 0.2 | 0.15 | 0.25 | | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 3 to 4? | |
[1] | A group of humans were timed running 100m. Here are the results:
| Time | humans | | 13 | 6 | | 14 | 6 | | 15 | 2 | | 16 | 4 | | 17 | 6 |
What fraction of the humans run 100m in exactly 14s?
| |
[2] |
Flip a coin 2 times.
Each time a head comes up you win $4 and with each tail you lose $2. It costs $2 to play (paid once). How much money would you expect to make altogether? | |
[1] | You flip a coin and roll a 7 sided die.
What is the probability of getting a 5 and a head? | |
[1] |
A bag has 8 balls with numbers from 2 to 9. You take out 1 ball.
What is the probability of getting a ball with a number more than 6? | |
[1] | A bag has 6 red balls and 9 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[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 that is bigger than 2 and smaller than 4? | |
[1] | A group of dogs did a math test and here are their scores out of 5:
What is the probability of the dogs to score exactly 4? | |
[2] |
You roll 2 3-sided dice
You add the two numbers. What is the probability of getting more than 4? | |
[1] | A bag has 9 balls with number 1 and 7 balls with a number 9. You take out 1 ball.
What is the probability of getting the ball with the number 1? | |
[1] |
Roll 12 6-sided dice.
How many times would you expect to get more than or equal to 5? | |
[1] |