Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are 1 or 4? | |
[1] | A bag has 8 balls with numbers from 5 to 12. You take out 1 ball.
What is the probability of getting a ball with an even number? | |
[1] |
A group of kids did a math test and here are their scores out of 5:
What is the probability of the kids to score more than 2? | |
[2] | A wheel has 5 purple sections and 2 yellow sections.
What is the probability of getting yellow? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | green | blue | | Color |
Probability of Type
| | 1 | | wagon | sedan | | Type |
What is the probability of a car being a blue wagon? | |
[2] | 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 exactly 2? | |
[2] |
Flip 7 coins.
What is the probability of getting 7 heads? | |
[1] | A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 2 | | 14 | 4 | | 15 | 6 | | 16 | 1 | | 17 | 1 |
What fraction of the people run 100m in exactly 13s?
| |
[2] |
Roll 12 6-sided dice.
How many times would you expect to get less than 5? | |
[1] | Roll a die 78 times.
How many times would you expect to get a 4? | |
[1] |
Flip a coin 6 times.
Each time a Tail comes up you win $2. How much money would you expect to make altogether? | |
[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 1 or 5? | |
[1] |
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are even? | |
[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:
| | 0.25 | 0.2 | | 0.05 | 0.5 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 4 to 5? | |
[1] |
There are 16 balls in a bag. This is is the probability distribution of their color:
| | 0.75 | 0.25 | | orange | yellow | | Color |
How many orange balls were in the bag? | |
[1] | There are 80 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
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