A bag has 3 red balls, 8 green balls and 10 blue balls. You take out 1 ball.
What is the probability of NOT getting a green ball? | |
[1] | We asked a group of boys how many Bowls of Ramen they eat in a month. Here are the results:
boys
| |
| Bowls of Ramen | 0 | 1 | | 1 | 2 | | 2 | 6 | | 3 | 2 |
What fraction of the boys eat less than 1 Bowls of Ramen in a month? | |
[2] |
A group of humans did a math test and here are their scores out of 5:
What is the probability of the humans to score more than 5? | |
[2] | A bag has 6 balls with numbers from 4 to 9. You take out 1 ball.
What is the probability of getting a ball with an odd number? | |
[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:
| | 0.15 | 0.25 | 0.25 | 0.1 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 1 | | | orange | green | | Color |
Probability of Type
| | 0.8 | 0.2 | | wagon | sedan | | Type |
What is the probability of a car being a green sedan? | |
[2] |
A bag has 4 balls with numbers from 2 to 5. You take out 1 ball.
What is the probability of getting the ball with the number 3? | |
[1] | Flip a coin 4 times.
How many times would you expect to get Heads? | |
[1] |
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less than 5? | |
[1] | Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are more than 3? | |
[1] |
Flip a coin 2 times.
Each time a Tail comes up you win $2. It costs $2 to play (paid once). How much money would you expect to make altogether? | |
[1] | Flip a coin 16 times.
Each time a head comes up you win $2 and with each tail you lose $3. How much money would you expect to make altogether? | |
[1] |
There are 60 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | | 0.6 | | purple | blue | orange | | Color |
How many purple balls were in the bag? | |
[1] | | A bag has 7 balls with number 9 and 7 balls with a number 9. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
There are 70 balls in a bag. This is is the probability distribution of their color:
If you choose a random ball from the bag, what is the probability of it not being red or blue? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
How many purple balls were in the bag? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
How many purple balls were in the bag? | |
[1] |