There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.5 | 0.3 | | green | yellow | orange | | Color |
How many orange balls were in the bag? | |
[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 4? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.2 | 0.7 | | green | orange | purple | | Color |
How many purple balls were in the bag? | |
[1] | Roll 2 6-sided dice.
You add the two numbers. What is the probability of getting 2? | |
[1] |
| A bag has 9 balls with number 8 and 6 balls with a number 1. What will be the average of the numbers of the balls taken out of the bag | |
[1] | You roll a 3 sided die and a 7 sided die.
What is the probability of getting 3 on both dice? | |
[1] |
Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are less than 3? | |
[1] | We asked a group of kids how many Hot dogs they eat in a week. Here are the results:
What is the probability of the kids to eat exactly 0 Hot dogs in a week? | |
[2] |
| You shoot an arrow at a target. There is a 30% chance of scoring a 10 and a 20% chance of scoring a 30 and a 50% chance of scoring a 50. 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:
What is the probability of rolling 1 or 5? | |
[1] |
A wheel has 8 sections, each has a reward in dollars, from $1 through to $8.
What prize do we expect to get if we spin the wheel? | |
[1] | Flip a coin 10 times.
Each time a head comes up you win $1 and with each tail you lose $1. How much money would you expect to make altogether? | |
[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 from 2 to 4? | |
[1] | We asked a group of girls how many Apples they eat in a month. Here are the results:
What fraction of the girls eat less than 2 Apples in a month? | |
[2] |
A wheel has 6 purple sections and 3 pink sections.
What is the probability of getting pink? | |
[1] | The weather forecast says that the chances of rain are 80%. The chance of remembering your umbrella is 60%. Your chance of being outside today are 40%.
What is the probability of getting wet today? | |
[1] |
Roll 138 6-sided dice.
How many times would you expect to get a number more than 5? | |
[1] | You roll 2 3-sided dice
You add the two numbers. What is the probability of getting more than or equal to 5? | |
[1] |
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