A group of people were timed running 100m. Here are the results:
What fraction of the people run 100m in exactly 17s?
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[2] | Roll 138 6-sided dice.
How many times would you expect to get anything except 1? | |
[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 | 0.1 | 0.2 | 0.55 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 3? | |
[1] | There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.4 | 0.4 | | yellow | purple | blue | | Color |
If you choose a random ball from the bag, what is the probability of it being blue or purple? | |
[1] |
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 exactly 0? | |
[2] | Roll 114 6-sided dice.
How many times would you expect to get an odd number? | |
[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 | 0.1 | 0.15 | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 and smaller than 2? | |
[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:
| | 0.6 | | 0.1 | 0.15 | 0.15 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 1? | |
[1] |
The weather forecast says that the chances of rain are 40%. Your chance of being outside today is 40%. You flip a coin to decide whether to take your umbrella.
What is the probability of getting wet today? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | blue | purple | | Color |
Probability of Type
| | 0.9 | 0.1 | | sedan | wagon | | Type |
What is the probability of a car being a purple sedan? | |
[2] |
A group of boys did a math test and here are their scores out of 5:
What fraction of the boys score less than 5? | |
[2] | There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | 0.3 | | | green | purple | orange | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple? | |
[1] |
There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.3 | 0.2 | | pink | green | blue | | Color |
If you choose a random ball from the bag, what is the probability of it being blue or pink? | |
[1] | A wheel has 6 orange sections and 7 green sections.
What is the probability of getting orange? | |
[1] |
Flip 3 coins.
What is the probability of getting 3 heads? | |
[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:
| | 0.5 | 0.05 | 0.2 | 0.25 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2? | |
[1] |
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