| You shoot an arrow at a target. There is a 60% chance of scoring a 10, a 20% 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] | A wheel has 10 sections, each has a reward in dollars, from $1 through to $10.
What prize do we expect to get if we spin the wheel? | |
[1] |
A wheel has 12 sections, each a number on it from 1 to 12. If you spin an odd number you win that amount of dollars, if you spin an even number you lose.
What prize do we expect to get if we spin the wheel? | |
[1] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.2 | 0.7 | | orange | pink | green | | Color |
If you choose a random ball from the bag, what is the probability of it not being orange or pink? | |
[1] |
We asked a group of dogs how many Bananas they eat in a day. Here are the results:
What fraction of the dogs eat exactly 3 Bananas in a day? | |
[2] | Roll 12 6-sided dice.
How many times would you expect to get a number less than 6? | |
[1] |
You roll a 5 sided die and a 9 sided die.
What is the probability of getting 5 on both dice? | |
[1] | A bag has 8 red balls and 10 blue balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | 0.3 | 0.1 | | blue | yellow | green | | Color |
How many green 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:
| | 0.15 | | 0.25 | 0.2 | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 4? | |
[1] |
There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.4 | 0.4 | | pink | yellow | red | | Color |
How many pink balls were in the bag? | |
[1] | A bag has 7 balls with numbers from 4 to 10. You take out 1 ball.
What is the probability of NOT getting the ball with the number 3? | |
[1] |
We asked a group of dogs how many Pizzas they eat in a day. Here are the results:
What is the probability of the dogs to eat exactly 3 Pizzas in a day? | |
[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 | 0.05 | 0.25 | 0.1 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 3? | |
[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 smaller than or equal to 2? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are 1 or 4? | |
[1] |
Roll 1 6-sided die.
What is the probability of getting a number bigger than or equal to 5? | |
[1] | Flip a coin 2 times.
Each time a Head comes up you win $2. How much money would you expect to make altogether? | |
[1] |
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