A bag has 2 balls with numbers from 2 to 3. You take out 1 ball.
What is the probability of getting a ball with an even number? | |
[1] | There are 50 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
Flip 2 coins.
What is the probability of getting 2 tails? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | blue | pink | | Color |
Probability of Type
| | 1 | | wagon | sedan | | Type |
What is the probability of a car being a blue sedan? | |
[2] |
Roll 66 6-sided dice.
How many times would you expect to get more than or equal to 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:
| | 0.05 | | 0.25 | 0.1 | 0.6 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 4? | |
[1] |
Roll 1 6-sided die.
What is the probability of getting a number smaller than 5? | |
[1] | A group of girls did a math test and here are their scores out of 5:
What is the probability of the girls to score more than 3? | |
[2] |
A group of boys did a math test and here are their scores out of 5:
What fraction of the boys score exactly 0? | |
[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | pink | red | | Color |
Probability of Type
| | 0.9 | 0.1 | | wagon | sedan | | Type |
What is the probability of a car being a red 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:
| | 0.5 | 0.05 | 0.25 | 0.2 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 1? | |
[1] | There are 2 balls in a bag. This is is the probability distribution of their color:
How many yellow 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 4 and smaller than 2? | |
[1] | There are 28 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
Roll 120 6-sided dice.
How many times would you expect to get more than 5? | |
[1] | A wheel has 9 sections, each has a reward in dollars, from $1 through to $9.
What prize do we expect to get if we spin the wheel? | |
[1] |
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