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 3 and smaller than 1? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score more than 2? | |
[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:
| | 0.2 | 0.05 | 0.25 | 0.25 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 4? | |
[1] | A bag has 7 red balls, 6 green balls and 8 blue balls. You take out 1 ball.
What is the probability of NOT getting a blue ball? | |
[1] |
Flip 3 coins.
What is the probability of getting 3 tails? | |
[1] | Roll 150 6-sided dice.
How many times would you expect to get a number more than 3? | |
[1] |
A bag has 7 balls with numbers from 5 to 11. You take out 1 ball.
What is the probability of NOT getting the ball with the number 6? | |
[1] | A wheel has 3 green sections and 7 pink sections.
What is the probability of getting green? | |
[1] |
Flip a coin 4 times.
Each time a Head comes up you win $4. It costs $7 to play (paid once). How much money would you expect to make altogether? | |
[1] | A bag has 3 balls with number 1 and 9 balls with a number 6. You take out 1 ball.
What is the probability of getting the ball with the number 1? | |
[1] |
A wheel has 8 red sections and 8 pink sections.
What is the probability of getting red? | |
[1] | We asked a group of kids how many Strawberries they eat in a week. Here are the results:
What fraction of the kids eat exactly 4 Strawberries in a week? | |
[2] |
Roll 72 6-sided dice.
How many times would you expect to get an even number? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.2 | 0.7 | | pink | purple | green | | Color |
If you choose a random ball from the bag, what is the probability of it not being green or purple? | |
[1] |
A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in exactly 15s?
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[2] | A wheel has 9 sections, each a number on it from 1 to 9. If you spin an odd number you win that amount of dollars, if you spin an even number you lose.
What prize do we expect to get if we spin the wheel? | |
[1] |
Roll 132 6-sided dice.
How many times would you expect to get more than 6? | |
[1] |