The weather forecast says that the chances of rain are 70%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 90%.
What is the probability of getting wet today? | |
[1] | A bag has 9 red balls, 3 blue balls and 6 yellow balls. You take out a blue ball, then a red ball, then another ball.
What is the probability of getting yellow for the last ball? | |
[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 2? | |
[2] | Roll 132 6-sided dice.
How many times would you expect to get more than or equal to 6? | |
[1] |
| You shoot an arrow at a target. You will either score 10 (40% chance), 30 (10% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] | Roll 24 6-sided dice.
How many times would you expect to get a number more than 2? | |
[1] |
A bag has 2 balls with number 4 and 2 balls with a number 9. You take out 1 ball.
What is the probability of getting the ball with the number 9? | |
[1] | A wheel has 8 sections, each has a reward in dollars, from $1 through to $8.
What prize do we expect to get if we spin the wheel? | |
[1] |
We asked a group of people how many Bowls of Ramen they eat in a day. Here are the results:
| Bowls of Ramen | people | | 0 | 2 | | 1 | 4 | | 2 | 2 | | 3 | 4 |
What is the probability of the people to eat less than 2 Bowls of Ramen in a day? | |
[2] | Flip a coin 12 times.
Each time a Head comes up you win $2. It costs $14 to play (paid once). How much money would you expect to make altogether? | |
[1] |
A group of humans were timed running 100m. Here are the results:
What is the probability of the humans to run 100m in exactly 14s?
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[2] | Flip a coin 10 times.
How many times would you expect to get Tails? | |
[1] |
A bag has 2 balls with numbers from 4 to 5. You take out 1 ball.
What is the probability of getting a ball with a number more than 5? | |
[1] | A group of dogs did a math test and here are their scores out of 5:
What is the probability of the dogs to score less than 0? | |
[2] |
Flip a coin 12 times.
Each time a head comes up you win $3 and with each tail you lose $4. How much money would you expect to make altogether? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 2 and a tail? | |
[1] |
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