A bag has 10 balls with numbers from 2 to 11. You take out 1 ball.
What is the probability of NOT getting the ball with the number 6? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | purple | red | | Color |
Probability of Type
| | 1 | | | sedan | wagon | | Type |
What is the probability of a car being a purple wagon? | |
[2] |
| You shoot an arrow at a target. There is a 90% chance of scoring a 10 and a 10% chance of scoring a 40. What average score do you expect to get if you do this many times? | |
[1] | The chances of feeling like icecream are 90%. The chances of being near an icecream store are 60%. There is a 30% chance that you lost all your money.
What is the probability of having icecream? | |
[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:
| | 0.2 | 0.05 | 0.1 | | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 3? | |
[1] | A group of people did a math test and here are their scores out of 5:
What fraction of the people score more than 1? | |
[2] |
There are 40 balls in a bag. This is is the probability distribution of their color:
How many orange balls were in the bag? | |
[1] | A wheel has 13 sections, each has a reward in dollars, from $1 through to $13.
What prize do we expect to get if we spin the wheel? | |
[1] |
You roll a 5 sided die and a 7 sided die.
What is the probability of getting 4 on both dice? | |
[1] | There are 70 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
A bag has 6 red balls and 7 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] | Flip a coin 12 times.
How many times would you expect to get Tails? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | purple | blue | | Color |
Probability of Type
| | 0.9 | 0.1 | | sedan | wagon | | Type |
What is the probability of a car being a blue wagon? | |
[2] | You roll 2 3-sided dice
You add the two numbers. What is the probability of getting exactly 4? | |
[1] |
We asked a group of humans how many Hot dogs they eat in a month. Here are the results:
What fraction of the humans eat less than 0 Hot dogs in a month? | |
[2] | | You shoot an arrow at a target. There is a 90% chance of scoring a 30 and a 10% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[1] |
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