An obstacle course has 1 Fences and 2 Ditches. You have a 90% chance of clearing a Fence and a 90% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] | | You shoot an arrow at a target. There is a 90% chance of scoring a 30 and a 10% chance of scoring a 40. What average score do you expect to get if you do this many times? | |
[1] |
Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are even? | |
[1] | Roll 18 6-sided dice.
How many times would you expect to get a number more than 5? | |
[1] |
Roll 1 6-sided die.
What is the probability of getting a number bigger than or equal to 3? | |
[1] | We asked a group of humans how many Peaches they eat in a month. Here are the results:
What fraction of the humans eat exactly 2 Peaches in a month? | |
[2] |
We asked a group of boys how many Bowls of Ramen they eat in a month. Here are the results:
boys
| |
| Bowls of Ramen | 0 | 1 | | 1 | 1 | | 2 | | | 3 | 1 |
What is the probability of the boys to eat more than 2 Bowls of Ramen in a month? | |
[2] | Roll 66 6-sided dice.
How many times would you expect to get less than 2? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
How many purple balls were in the bag? | |
[1] | A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score exactly 4? | |
[2] |
There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.3 | 0.4 | | yellow | red | purple | | Color |
How many red balls were in the bag? | |
[1] | A bag has 7 red balls, 10 blue balls and 4 yellow balls. You take out a red ball, then a yellow ball, then another ball.
What is the probability of getting yellow 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 4 or smaller than 5? | |
[1] | A bag has 3 balls with numbers from 1 to 3. You take out 1 ball.
What is the probability of NOT getting the ball with the number 2? | |
[1] |
The chances of feeling like icecream are 70%. The chances of being near an icecream store are 90%. There is a 10% chance that you lost all your money.
What is the probability of having icecream? | |
[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:
| | 0.55 | 0.15 | 0.05 | 0.2 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 1 or 4? | |
[1] |
| You shoot an arrow at a target. There is a 50% chance of scoring a 20, 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] |