Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.3 | 0.7 | | red | purple | | Color |
Probability of Type
| | 0.8 | 0.2 | | wagon | sedan | | Type |
What is the probability of a car being a purple wagon? | |
[2] | A bag has 11 balls with numbers from 1 to 11. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 6? | |
[1] |
A bag has 5 balls with numbers from 3 to 7. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 5? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.4 | 0.4 | | pink | blue | red | | Color |
If you choose a random ball from the bag, what is the probability of it not being blue or pink? | |
[1] |
A bag has 3 balls with number 8 and 3 balls with a number 5. You take out 1 ball.
What is the probability of getting the ball with the number 5? | |
[1] | | You shoot an arrow at a target. You will either score 20 (40% chance), 30 (20% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
The chances of feeling like icecream are 50%. The chances of being near an icecream store are 90%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[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 less than 2? | |
[2] |
A bag has 8 red balls and 2 blue balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[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 3? | |
[1] |
Flip a coin 14 times.
How many times would you expect to get Tails? | |
[1] | We asked a group of dogs how many Popsicles they eat in a day. Here are the results:
What fraction of the dogs eat exactly 1 Popsicles in a day? | |
[2] |
Roll 42 6-sided dice.
How many times would you expect to get anything except 5? | |
[1] | A group of humans were timed running 100m. Here are the results:
humans
| | 5 | 3 | 2 | 2 | 2 | | 13 | 14 | 15 | 16 | 17 | | Time |
What is the probability of the humans to run 100m in exactly 17s?
| |
[2] |
There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | | 0.4 | | pink | yellow | green | | Color |
How many pink balls were in the bag? | |
[1] | A bag has 4 balls with numbers from 4 to 7. You take out 1 ball.
What is the probability of NOT getting the ball with the number 5? | |
[1] |
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