There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | green | red | blue | | Color |
If you choose a random ball from the bag, what is the probability of it not being blue or green? | |
[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 1 or smaller than 5? | |
[1] |
A bag has 7 red balls and 7 blue 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 30 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | red | green | yellow | | Color |
If you choose a random ball from the bag, what is the probability of it not being green? | |
[1] |
We asked a group of boys how many Burgers they eat in a month. Here are the results:
What fraction of the boys eat less than 3 Burgers in a month? | |
[2] | You flip a coin and roll a 6 sided die.
What is the probability of getting a number equal to 3 and a head? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 4 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 or equal to 4? | |
[1] |
Roll 6 6-sided dice.
How many times would you expect to get less than or equal to 6? | |
[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 | 0.05 | 0.05 | 0.25 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 or smaller than 5? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in less than 15s?
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[2] | Roll 18 6-sided dice.
How many times would you expect to get less than or equal to 5? | |
[1] |
You roll a 6 sided die and a 3 sided die.
What is the probability of getting 2 on both dice? | |
[1] | Roll 72 6-sided dice.
How many times would you expect to get an even number? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.1 | 0.9 | | orange | pink | | Color |
Probability of Type
| | 0.3 | 0.7 | | wagon | sedan | | Type |
What is the probability of a car being a orange sedan? | |
[2] | A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in less than 14s?
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[2] |
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