A bag has 8 balls with numbers from 3 to 10. You take out 1 ball.
What is the probability of getting the ball with the number 8? | |
[1] | | You shoot an arrow at a target. There is a 60% chance of scoring a 20, a 20% chance of scoring a 50, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] |
A group of kids did a math test and here are their scores out of 5:
What is the probability of the kids to score less than 4? | |
[2] | A bag has 9 balls with number 1 and 7 balls with a number 5. You take out 1 ball.
What is the probability of getting the ball with the number 1? | |
[1] |
We asked a group of kids how many Popsicles they eat in a day. Here are the results:
What fraction of the kids eat exactly 4 Popsicles in a day? | |
[2] | Roll 42 6-sided dice.
How many times would you expect to get more than or equal to 6? | |
[1] |
There are 80 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | purple | orange | blue | | Color |
How many blue balls were in the bag? | |
[1] | | A bag has 5 balls with number 4 and 9 balls with a number 6. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
We asked a group of humans how many Strawberries they eat in a month. Here are the results:
What fraction of the humans eat less than 4 Strawberries in a month? | |
[2] | | You shoot an arrow at a target. There is a 30% chance of scoring a 20 and a 20% chance of scoring a 40 and a 50% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.7 | 0.3 | | red | yellow | | Color |
Probability of Type
| | 0.4 | 0.6 | | sedan | wagon | | Type |
What is the probability of a car being a red wagon? | |
[2] | The weather forecast says that the chances of rain are 20%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 60%.
What is the probability of getting wet today? | |
[1] |
A group of girls did a math test and here are their scores out of 5:
What is the probability of the girls to score more than 3? | |
[2] | A wheel has 9 sections, each has a reward in dollars, from $1 through to $9.
What prize do we expect to get if we spin the wheel? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number less than 2 and a tail? | |
[1] |