Roll 1 6-sided die.
What is the probability of getting a number smaller than or equal to 6? | |
[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 exactly 5? | |
[2] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.1 | 0.9 | | orange | red | | Color |
Probability of Type
| | 0.8 | 0.2 | | wagon | sedan | | Type |
What is the probability of a car being a red wagon? | |
[2] | Flip 1 coin.
What is the probability of getting a tail? | |
[1] |
A bag has 4 balls with number 7 and 8 balls with a number 8. You take out 1 ball.
What is the probability of getting the ball with the number 8? | |
[1] | A wheel has 7 purple sections and 8 orange sections.
What is the probability of getting orange? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.6 | 0.4 | | red | yellow | | Color |
Probability of Type
| | 0.3 | 0.7 | | sedan | wagon | | Type |
What is the probability of a car being a red sedan? | |
[2] | A wheel has 12 sections, each a number on it from 1 to 12. If you spin an even number you win that amount of dollars, if you spin an odd number you lose.
What prize do we expect to get if we spin the wheel? | |
[1] |
A bag has 5 red balls and 8 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] | The weather forecast says that the chances of rain are 80%. Your chance of being outside today is 50%. The chance of remembering your umbrella is 40%.
What is the probability of getting wet today? | |
[1] |
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are 1 or 4? | |
[1] | Roll 60 6-sided dice.
How many times would you expect to get less than 6? | |
[1] |
Flip a coin 18 times.
Each time a head comes up you win $3 and with each tail you lose $3. It costs $4 to play (paid once). 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 a number that is smaller than 2? | |
[1] |
Roll 66 6-sided dice.
How many times would you expect to get a number less than 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:
What is the probability of rolling a number that is bigger than or equal to 3? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a 3 and a tail? | |
[1] |