Roll 30 6-sided dice.
How many times would you expect to get an odd number? | |
[1] | A bag has 7 balls with number 2 and 8 balls with a number 9. You take out 1 ball.
What is the probability of getting the ball with the number 9? | |
[1] |
A wheel has 6 green sections and 8 orange sections.
What is the probability of getting orange? | |
[1] | The chances of feeling like icecream are 60%. The chances of being near an icecream store are 90%. There is a 20% chance that you lost all your money.
What is the probability of having icecream? | |
[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 | 0.2 | 0.05 | 0.25 | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 1? | |
[1] | A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in more than 15s?
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[2] |
A group of humans were timed running 100m. Here are the results:
| Time | humans | | 13 | 4 | | 14 | 2 | | 15 | 3 | | 16 | 3 | | 17 | 3 |
What fraction of the humans run 100m in less than 14s?
| |
[2] | Flip a coin 4 times.
Each time a Head comes up you win $3. It costs $6 to play (paid once). How much money would you expect to make altogether? | |
[1] |
A group of people were timed running 100m. Here are the results:
What is the probability of the people to run 100m in exactly 16s?
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[2] | A bag has 6 balls with number 5 and 4 balls with a number 5. You take out 1 ball.
What is the probability of getting the ball with the number 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 5? | |
[2] | Roll 138 6-sided dice.
How many times would you expect to get a number more than 1? | |
[1] |
Flip 1 coin.
What is the probability of getting a head? | |
[1] | Roll 144 6-sided dice.
How many times would you expect to get anything except 1? | |
[1] |
A bag has 6 red balls and 3 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | | 0.3 | | orange | green | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being purple or orange? | |
[1] |
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