A bag has 8 balls with numbers from 2 to 9. You take out 1 ball.
What is the probability of NOT getting the ball with the number 7? | |
[1] | Roll 36 6-sided dice.
How many times would you expect to get more than 3? | |
[1] |
A bag has 3 balls with numbers from 2 to 4. You take out 1 ball.
What is the probability of NOT getting the ball with the number 5? | |
[1] | Roll 138 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
Flip a coin 8 times.
Each time a head comes up you win $2 and with each tail you lose $1. How much money would you expect to make altogether? | |
[1] | | You shoot an arrow at a target. There is a 50% chance of scoring a 30, a 40% chance of scoring a 60, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] |
| You shoot an arrow at a target. There is a 30% chance of scoring a 10 and a 30% chance of scoring a 30 and a 40% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] | A wheel has 8 yellow sections and 5 purple sections.
What is the probability of getting purple? | |
[1] |
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 more than 2? | |
[2] | A bag has 2 balls with numbers from 2 to 3. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 1? | |
[1] |
We asked a group of humans how many Peaches they eat in a day. Here are the results:
What fraction of the humans eat exactly 4 Peaches in a day? | |
[2] | Flip a coin 12 times.
Each time a head comes up you win $2 and with each tail you lose $1. How much money would you expect to make altogether? | |
[1] |
There are 60 balls in a bag. This is is the probability distribution of their color:
How many purple balls were in the bag? | |
[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 or equal to 1? | |
[1] |
A bag has 10 red balls, 4 blue balls and 3 yellow balls. You take out a yellow ball, then a blue ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] | | You shoot an arrow at a target. You will either score 10 (50% chance), 30 (20% chance), or 60. What average score do you expect to get if you do this many times? | |
[1] |
Roll 60 6-sided dice.
How many times would you expect to get an ugly number? | |
[1] | There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | 0.3 | 0.1 | | pink | yellow | purple | | Color |
How many yellow balls were in the bag? | |
[1] |
|