A bag has 7 red balls and 5 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 bigger than 1 and smaller than 2? | |
[1] |
| You shoot an arrow at a target. There is a 60% chance of scoring a 30, 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] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are odd? | |
[1] |
A group of people were timed running 100m. Here are the results:
What is the probability of the people to run 100m in exactly 17s?
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[2] | We asked a group of humans how many Bananas they eat in a week. Here are the results:
What is the probability of the humans to eat exactly 1 Bananas in a week? | |
[2] |
The chances of feeling like icecream are 60%. The chances of being near an icecream store are 90%. There is a 10% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | We asked a group of kids how many Hot dogs they eat in a week. Here are the results:
What fraction of the kids eat less than 3 Hot dogs in a week? | |
[2] |
There are 55 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score more than 1? | |
[2] |
| 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] | 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:
| | 0.55 | 0.15 | 0.05 | 0.2 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 5 and smaller than 1? | |
[1] |
The chances of feeling like icecream are 50%. 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] | | A bag has 2 balls with number 6 and 6 balls with a number 9. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are even? | |
[1] | Roll 1 6-sided die.
What is the probability of NOT getting a 5? | |
[1] |
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