A group of girls did a math test and here are their scores out of 5:
What fraction of the girls score exactly 2? | |
[2] | 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 4? | |
[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] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.2 | 0.6 | | pink | yellow | purple | | Color |
If you choose a random ball from the bag, what is the probability of it being purple? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in less than 16s?
| |
[2] | There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.2 | 0.4 | | green | pink | red | | Color |
How many green balls were in the bag? | |
[1] |
| A bag has 9 balls with number 6 and 5 balls with a number 9. What will be the average of the numbers of the balls taken out of the bag | |
[1] | | You shoot an arrow at a target. There is a 40% chance of scoring a 10, a 50% chance of scoring a 40, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[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 exactly 5? | |
[2] | There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.9 | | 0.1 | | green | pink | yellow | | Color |
How many green balls were in the bag? | |
[1] |
Roll 84 6-sided dice.
How many times would you expect to get a number more than 2? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | yellow | purple | | Color |
Probability of Type
| | 0.2 | 0.8 | | wagon | sedan | | Type |
What is the probability of a car being a purple wagon? | |
[2] |
A wheel has 6 red sections and 2 pink sections.
What is the probability of getting pink? | |
[1] | A bag has 8 red balls, 6 blue balls and 9 yellow balls. You take out a blue ball, then a red 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 exactly 4? | |
[2] |