Roll 72 6-sided dice.
How many times would you expect to get a number less than 5? | |
[1] | We asked a group of girls how many Peaches they eat in a month. Here are the results:
What is the probability of the girls to eat more than 4 Peaches in a month? | |
[2] |
There are 2 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] | | You shoot an arrow at a target. You will either score 20 (50% chance), 30 (40% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
A group of humans were timed running 100m. Here are the results:
What fraction of the humans run 100m in exactly 16s?
| |
[2] | A bag has 8 red balls and 4 blue balls. You take out 1 red ball, then another ball.
What is the probability of getting blue for the second ball? | |
[1] |
Flip a coin 14 times.
Each time a Tail comes up you win $1. It costs $14 to play (paid once). How much money would you expect to make altogether? | |
[1] | We asked a group of girls how many Bowls of Ramen they eat in a week. Here are the results:
girls
| |
| Bowls of Ramen | 0 | 4 | | 1 | | | 2 | | | 3 | 2 |
What fraction of the girls eat exactly 4 Bowls of Ramen in a week? | |
[2] |
You flip a coin and roll a 9 sided die.
What is the probability of getting a 3 and a head? | |
[1] | There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.2 | 0.4 | | yellow | green | purple | | Color |
How many yellow balls were in the bag? | |
[1] |
Flip a coin 16 times.
Each time a Head comes up you win $3. How much money would you expect to make altogether? | |
[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:
| | 0.5 | 0.15 | 0.25 | 0.1 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 2? | |
[1] |
The weather forecast says that the chances of rain are 80%. Your chance of being outside today is 90%. You flip a coin to decide whether to take your umbrella.
What is the probability of getting wet today? | |
[1] | The chances of feeling like icecream are 50%. The chances of being near an icecream store are 40%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[1] |
Roll 78 6-sided dice.
How many times would you expect to get less than 1? | |
[1] | A bag has 6 red balls, 7 blue balls and 9 yellow balls. You take out a yellow ball, then a yellow ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
The chances of feeling like icecream are 60%. The chances of being near an icecream store are 40%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[1] |