The weather forecast says that the chances of rain are 50%. Your chance of being outside today is 70%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[1] | A bag has 7 red balls, 7 green balls and 4 blue balls. You take out 1 ball.
What is the probability of getting a red ball or a green ball? | |
[1] |
A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in exactly 14s?
| |
[2] | An obstacle course has 1 Fences and 2 Ditches. You have a 100% chance of clearing a Fence and a 80% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)? | |
[1] |
| A bag has 7 balls with number 5 and 7 balls with a number 9. What will be the average of the numbers of the balls taken out of the bag | |
[1] | You flip a coin and roll a 8 sided die.
What is the probability of getting a 1 and a tail? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score less than 0? | |
[2] | Roll 30 6-sided dice.
How many times would you expect to get less than 2? | |
[1] |
A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score exactly 2? | |
[2] | Flip a coin 10 times.
Each time a head comes up you win $2 and with each tail you lose $2. How much money would you expect to make altogether? | |
[1] |
We asked a group of boys how many Apples they eat in a month. Here are the results:
What fraction of the boys eat less than 0 Apples in a month? | |
[2] | There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.5 | 0.1 | | pink | purple | blue | | Color |
If you choose a random ball from the bag, what is the probability of it being purple? | |
[1] |
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are odd? | |
[1] | | You shoot an arrow at a target. You will either score 10 (40% chance), 30 (40% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
The weather forecast says that the chances of rain are 20%. Your chance of being outside today is 90%. The chance of remembering your umbrella is 60%.
What is the probability of getting wet today? | |
[1] | A wheel has 12 sections, each with a different reward.
What is the probability of getting a Mike & Ike? | |
[1] |
|