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 2? | |
[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.5 | 0.5 | | green | yellow | | Color |
Probability of Type
| | 1 | | sedan | wagon | | Type |
What is the probability of a car being a yellow sedan? | |
[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:
| | 0.1 | 0.05 | 0.2 | | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 2? | |
[1] | There are 50 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number less than 5 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:
What is the probability of rolling a number that is bigger than 5 and smaller than 2? | |
[1] |
A group of girls did a math test and here are their scores out of 5:
What fraction of the girls score more than 5? | |
[2] | | You shoot an arrow at a target. There is a 10% chance of scoring a 10 and a 40% chance of scoring a 30 and a 50% chance of scoring a 50. 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:
| | 0.4 | 0.15 | 0.15 | 0.2 | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 1? | |
[1] | Roll 150 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.5 | 0.2 | | purple | blue | yellow | | Color |
How many blue balls were in the bag? | |
[1] | A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in less than 17s?
| |
[2] |
There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.7 | | orange | blue | yellow | | Color |
If you choose a random ball from the bag, what is the probability of it not being orange or yellow? | |
[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 3? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.5 | 0.1 | | orange | yellow | purple | | Color |
How many orange balls were in the bag? | |
[1] | A bag has 11 balls with numbers from 1 to 11. You take out 1 ball.
What is the probability of NOT getting the ball with the number 7? | |
[1] |
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