A bag has 6 balls with numbers from 5 to 10. You take out 1 ball.
What is the probability of NOT getting the ball with the number 4? | |
[1] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.2 | 0.5 | | red | blue | purple | | Color |
How many purple balls were in the bag? | |
[1] |
Roll 72 6-sided dice.
How many times would you expect to get less than or equal to 3? | |
[1] | A bag has 8 red balls and 9 blue 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 bag has 7 red balls, 10 blue balls and 5 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] | There are 4 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] |
A wheel has 10 sections, each has a reward in dollars, from $1 through to $10.
What prize do we expect to get if we spin the wheel? | |
[1] | We asked a group of boys how many Oranges they eat in a month. Here are the results:
What fraction of the boys eat exactly 2 Oranges in a month? | |
[2] |
A wheel has 5 orange sections and 7 green sections.
What is the probability of getting green? | |
[1] | A group of boys did a math test and here are their scores out of 5:
What fraction of the boys score less than 4? | |
[2] |
A group of boys were timed running 100m. Here are the results:
What is the probability of the boys to run 100m in exactly 17s?
| |
[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.9 | 0.1 | | orange | pink | | Color |
Probability of Type
| | 1 | | | wagon | sedan | | Type |
What is the probability of a car being a orange wagon? | |
[2] |
There are 28 balls in a bag. This is is the probability distribution of their color:
| | 0.25 | 0.75 | | purple | yellow | | Color |
How many purple balls were in the bag? | |
[1] | | You shoot an arrow at a target. There is a 60% chance of scoring a 30, a 10% 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] |
We asked a group of kids how many Pizzas they eat in a day. Here are the results:
What is the probability of the kids to eat exactly 4 Pizzas in a day? | |
[2] |