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:
| | 0.65 | | 0.2 | 0.05 | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 3? | |
[1] | A bag has 2 red balls and 6 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
You roll a 9 sided die and a 6 sided die.
What is the probability of getting 1 on both dice? | |
[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:
| | 0.1 | | 0.05 | 0.25 | 0.6 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3? | |
[1] |
Roll 120 6-sided dice.
How many times would you expect to get less than or equal to 3? | |
[1] | A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 15s?
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[2] |
A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 17s?
| |
[2] | We asked a group of people how many Bananas they eat in a month. Here are the results:
What fraction of the people eat exactly 0 Bananas in a month? | |
[2] |
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 more than 0? | |
[2] | A group of humans were timed running 100m. Here are the results:
humans
| |
| Time | 13 | 3 | | 14 | 1 | | 15 | 4 | | 16 | 4 | | 17 | 2 |
What fraction of the humans run 100m in exactly 15s?
| |
[2] |
| You shoot an arrow at a target. You will either score 20 (50% chance), 30 (10% chance), or 60. What average score do you expect to get if you do this many times? | |
[1] | There are 15 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] | There are 2 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | purple | pink | blue | | Color |
How many purple balls were in the bag? | |
[1] |