Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | | pink | yellow | | Color |
Probability of Type
| | 0.5 | 0.5 | | sedan | wagon | | Type |
What is the probability of a car being a pink wagon? | |
[2] | A bag has 3 balls with numbers from 2 to 4. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 3? | |
[1] |
Roll 78 6-sided dice.
How many times would you expect to get more than 1? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | blue | purple | | Color |
Probability of Type
| | 0.2 | 0.8 | | wagon | sedan | | Type |
What is the probability of a car being a blue wagon? | |
[2] |
A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in more than 16s?
| |
[2] | | You shoot an arrow at a target. There is a 60% chance of scoring a 30, 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] |
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 3? | |
[1] | There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.1 | 0.5 | | green | red | purple | | Color |
If you choose a random ball from the bag, what is the probability of it being purple or green? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a 6 and a tail? | |
[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:
| | 0.3 | 0.25 | 0.1 | 0.1 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 or smaller than 3? | |
[1] |
There are 120 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] | There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.2 | 0.5 | | blue | purple | orange | | Color |
How many blue balls were in the bag? | |
[1] |
A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score more than 0? | |
[2] | A bag has 8 red balls, 8 blue balls and 8 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] |
| A bag has 6 balls with number 8 and 8 balls with a number 1. What will be the average of the numbers of the balls taken out of the bag | |
[1] | A bag has 11 balls with numbers from 1 to 11. You take out 1 ball.
What is the probability of getting a ball with a number less than 9? | |
[1] |
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