Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | green | pink | | Color |
Probability of Type
| | 0.1 | 0.9 | | wagon | sedan | | Type |
What is the probability of a car being a pink wagon? | |
[2] | A bag has 7 red balls and 10 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] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.4 | 0.6 | | purple | green | | Color |
Probability of Type
| | 0.9 | 0.1 | | sedan | wagon | | Type |
What is the probability of a car being a purple wagon? | |
[2] | The weather forecast says that the chances of rain are 20%. Your chance of being outside today is 80%. The chance of remembering your umbrella is 40%.
What is the probability of getting wet today? | |
[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:
| | 0.25 | 0.15 | 0.1 | 0.05 | 0.45 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than or equal to 2? | |
[1] | A group of people were timed running 100m. Here are the results:
people
| |
| Time | 13 | 6 | | 14 | 6 | | 15 | 4 | | 16 | 3 | | 17 | 3 |
What fraction of the people run 100m in more than 15s?
| |
[2] |
Roll 1 6-sided die.
What is the probability of getting an odd number? | |
[1] | Flip 7 coins.
What is the probability of getting 7 tails? | |
[1] |
There are 50 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | A bag has 4 red balls, 10 green balls and 8 blue balls. You take out 1 ball.
What is the probability of getting a green ball? | |
[1] |
The chances of feeling like icecream are 90%. The chances of being near an icecream store are 70%. There is a 20% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | | You shoot an arrow at a target. There is a 10% chance of scoring a 10 and a 10% chance of scoring a 40 and a 80% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
A bag has 8 red balls and 3 blue balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] | There are 32 balls in a bag. This is is the probability distribution of their color:
| | 0.25 | 0.75 | | yellow | orange | | Color |
How many orange balls were in the bag? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What fraction of the people score more than 5? | |
[2] | A bag has 5 red balls, 7 blue balls and 5 yellow balls. You take out a yellow ball, then a yellow ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
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