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:
| | 0.05 | 0.15 | 0.2 | 0.1 | 0.5 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3? | |
[1] | There are 10 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
The chances of feeling like icecream are 70%. The chances of being near an icecream store are 50%. There is a 20% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | We asked a group of kids how many Sandwiches they eat in a month. Here are the results:
What fraction of the kids eat exactly 0 Sandwiches in a month? | |
[2] |
You flip a coin and roll a 8 sided die.
What is the probability of getting a 1 and a head? | |
[1] | | You shoot an arrow at a target. There is a 40% chance of scoring a 20 and a 20% chance of scoring a 40 and a 40% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in exactly 16s?
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[2] | There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.5 | 0.3 | | green | yellow | pink | | Color |
How many green balls were in the bag? | |
[1] |
Flip 3 coins.
What is the probability of getting 3 heads? | |
[1] | We asked a group of girls how many Pillows they eat in a day. Here are the results:
What is the probability of the girls to eat exactly 2 Pillows in a day? | |
[2] |
| You shoot an arrow at a target. There is a 10% chance of scoring a 20 and a 10% chance of scoring a 40 and a 80% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] | The weather forecast says that the chances of rain are 70%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 80%.
What is the probability of getting wet today? | |
[1] |
The weather forecast says that the chances of rain are 20%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 80%.
What is the probability of getting wet today? | |
[1] | Roll 126 6-sided dice.
How many times would you expect to get more than or equal to 4? | |
[1] |
Roll 132 6-sided dice.
How many times would you expect to get more than or equal to 4? | |
[1] | A group of girls did a math test and here are their scores out of 5:
What fraction of the girls score less than 4? | |
[2] |
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