A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score exactly 4? | |
[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 4? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | pink | green | | Color |
Probability of Type
| | 0.6 | 0.4 | | wagon | sedan | | Type |
What is the probability of a car being a pink wagon? | |
[2] | Roll 48 6-sided dice.
How many times would you expect to get less than or equal to 5? | |
[1] |
A wheel has 16 sections, 2 of each color.
What is the probability of getting blue? | |
[1] | Roll 18 6-sided dice.
How many times would you expect to get a number more than 0? | |
[1] |
| You shoot an arrow at a target. There is a 30% chance of scoring a 20 and a 20% chance of scoring a 40 and a 50% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] | A group of kids were timed running 100m. Here are the results:
What is the probability of the kids to run 100m in more than 14s?
| |
[2] |
There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.3 | 0.4 | | blue | purple | yellow | | 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 4? | |
[1] |
There are 30 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] | Roll 84 6-sided dice.
How many times would you expect to get less than 5? | |
[1] |
A bag has 10 red balls, 3 blue balls and 9 yellow 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 80 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What fraction of the people score more than 2? | |
[2] | Flip 3 coins.
What is the probability of getting 3 heads? | |
[1] |
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