A bag has 8 balls with numbers from 1 to 8. You take out 1 ball.
What is the probability of NOT getting a ball with a number more than 0? | |
[1] | A wheel has 8 yellow sections and 8 blue sections.
What is the probability of getting blue? | |
[1] |
There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | 0.2 | 0.1 | | red | orange | green | | Color |
How many red balls were in the bag? | |
[1] | | You shoot an arrow at a target. There is a 40% chance of scoring a 20 and a 30% chance of scoring a 40 and a 30% chance of scoring a 50. 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:
| | 0.25 | 0.2 | 0.2 | | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 3 to 5? | |
[1] | There are 4 balls in a bag. This is is the probability distribution of their color:
| | 0.75 | 0.25 | | yellow | orange | | Color |
How many yellow balls were in the bag? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.5 | 0.5 | | yellow | purple | | Color |
Probability of Type
| | 1 | | | wagon | sedan | | Type |
What is the probability of a car being a purple wagon? | |
[2] | A group of kids were timed running 100m. Here are the results:
What is the probability of the kids to run 100m in exactly 16s?
| |
[2] |
A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in more than 14s?
| |
[2] | The chances of feeling like icecream are 70%. The chances of being near an icecream store are 60%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[1] |
The weather forecast says that the chances of rain are 60%. Your chance of being outside today is 60%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] |
Roll 30 6-sided dice.
How many times would you expect to get a number less than 2? | |
[1] | Flip a coin 16 times.
Each time a head comes up you win $4 and with each tail you lose $1. It costs $27 to play (paid once). How much money would you expect to make altogether? | |
[1] |
A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in exactly 13s?
| |
[2] | A bag has 12 balls with numbers from 1 to 12. You take out 1 ball.
What is the probability of getting a ball with an odd number? | |
[1] |
|