An obstacle course has 2 Fences and 1 Ditches. You have a 90% chance of clearing a Fence and a 50% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] | Roll 120 6-sided dice.
How many times would you expect to get more than or equal to 2? | |
[1] |
Roll 2 6-sided dice.
What is the probability of getting a 3 on both dice? | |
[1] | There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | | 0.8 | | purple | orange | yellow | | Color |
How many purple balls were in the bag? | |
[1] |
You flip a coin and roll a 3 sided die.
What is the probability of getting a 4 and a head? | |
[1] | We asked a group of boys how many Peaches they eat in a month. Here are the results:
What is the probability of the boys to eat exactly 2 Peaches in a month? | |
[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:
| | 0.45 | 0.05 | 0.2 | 0.25 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 3 to 5? | |
[1] | Flip 1 coin.
What is the probability of getting a tail? | |
[1] |
You roll 2 3-sided dice
You add the two numbers. What is the probability of getting less than or equal to 5? | |
[1] | We asked a group of dogs how many Pillows they eat in a week. Here are the results:
What fraction of the dogs eat exactly 2 Pillows in a week? | |
[2] |
Roll 96 6-sided dice.
How many times would you expect to get a number more than 7? | |
[1] | We asked a group of dogs how many Chocolates they eat in a day. Here are the results:
What fraction of the dogs eat less than 2 Chocolates in a day? | |
[2] |
The weather forecast says that the chances of rain are 60%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 50%.
What is the probability of getting wet today? | |
[1] | A bag has 8 red balls, 8 green balls and 4 blue balls. You take out 1 ball.
What is the probability of NOT getting a green ball? | |
[1] |
A group of people were timed running 100m. Here are the results:
What is the probability of the people to run 100m in less than 16s?
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[2] | A bag has 6 red balls, 5 blue balls and 4 yellow balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting yellow for the last ball? | |
[1] |
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