You roll a 4 sided die and a 3 sided die.
What is the probability of getting 2 on both dice? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.5 | 0.5 | | pink | yellow | | Color |
Probability of Type
| | 1 | | | sedan | wagon | | Type |
What is the probability of a car being a yellow wagon? | |
[2] |
There are 55 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | A wheel has 12 sections, each has a reward in dollars, from $1 through to $12.
What prize do we expect to get if we spin the wheel? | |
[1] |
There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | | 0.6 | | purple | green | orange | | Color |
If you choose a random ball from the bag, what is the probability of it being green? | |
[1] | A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 6 | | 14 | 6 | | 15 | 0 | | 16 | 0 | | 17 | 2 |
What fraction of the people run 100m in exactly 15s?
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[2] |
Flip a coin 2 times.
Each time a head comes up you win $4 and with each tail you lose $4. It costs $3 to play (paid once). How much money would you expect to make altogether? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] |
A bag has 6 balls with number 4 and 4 balls with a number 6. You take out 1 ball.
What is the probability of getting the ball with the number 6? | |
[1] | A group of kids were timed running 100m. Here are the results:
What is the probability of the kids to run 100m in more than 16s?
| |
[2] |
A bag has 9 red balls and 9 blue balls. You take out a red ball, then a blue ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What is the probability of the humans to score more than 1? | |
[2] |
Roll 48 6-sided dice.
How many times would you expect to get more than or equal to 3? | |
[1] | | You shoot an arrow at a target. There is a 60% chance of scoring a 20, a 20% chance of scoring a 60, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] |
The weather forecast says that the chances of rain are 20%. Your chance of being outside today is 60%. The chance of remembering your umbrella is 70%.
What is the probability of getting wet today? | |
[1] | | You shoot an arrow at a target. There is a 40% chance of scoring a 20, a 30% chance of scoring a 60, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] |
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