Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.1 | 0.9 | | red | pink | | Color |
Probability of Type
| | 0.1 | 0.9 | | sedan | wagon | | Type |
What is the probability of a car being a pink wagon? | |
[2] | A group of humans were timed running 100m. Here are the results:
What fraction of the humans run 100m in more than 14s?
| |
[2] |
A bag has 4 red balls and 8 blue balls. You take out 1 blue ball, then another ball.
What is the probability of getting blue for the second ball? | |
[1] | | You shoot an arrow at a target. You will either score 10 (40% chance), 30 (20% chance), or 60. What average score do you expect to get if you do this many times? | |
[1] |
A group of boys were timed running 100m. Here are the results:
What is the probability of the boys to run 100m in exactly 15s?
| |
[2] | A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in more than 14s?
| |
[2] |
There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | 0.2 | 0.1 | | orange | blue | red | | Color |
If you choose a random ball from the bag, what is the probability of it being orange? | |
[1] | Roll 144 6-sided dice.
How many times would you expect to get less than or equal to 6? | |
[1] |
| A bag has 2 balls with number 8 and 5 balls with a number 2. What will be the average of the numbers of the balls taken out of the bag | |
[1] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.3 | 0.4 | | green | red | purple | | Color |
If you choose a random ball from the bag, what is the probability of it being green or red? | |
[1] |
A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in more than 13s?
| |
[2] | There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | orange | yellow | green | | Color |
How many green balls were in the bag? | |
[1] |
There are 16 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | Flip a coin 8 times.
Each time a Tail comes up you win $4. It costs $15 to play (paid once). How much money would you expect to make altogether? | |
[1] |
There are 120 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] |