A group of people were timed running 100m. Here are the results:
What is the probability of the people to run 100m in exactly 15s?
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[2] | | You shoot an arrow at a target. There is a 40% chance of scoring a 20 and a 20% chance of scoring a 40 and a 40% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
| You shoot an arrow at a target. There is a 30% chance of scoring a 20 and a 10% chance of scoring a 30 and a 60% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] | A bag has 10 red balls and 9 blue balls. You take out 1 red ball, then another ball.
What is the probability of getting blue for the second ball? | |
[1] |
We asked a group of people how many Bowls of Ramen they eat in a week. Here are the results:
people
| | 5 | 2 | 3 | 4 | | 0 | 1 | 2 | 3 | | Bowls of Ramen |
What is the probability of the people to eat more than 2 Bowls of Ramen in a week? | |
[2] | We asked a group of girls how many Sandwiches they eat in a month. Here are the results:
What is the probability of the girls to eat exactly 2 Sandwiches in a month? | |
[2] |
A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 4 | | 14 | 3 | | 15 | 3 | | 16 | 4 | | 17 | 6 |
What is the probability of the people to run 100m in exactly 13s?
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[2] | Flip a coin 12 times.
Each time a Head comes up you win $3. How much money would you expect to make altogether? | |
[1] |
A bag has 3 balls with numbers from 3 to 5. You take out 1 ball.
What is the probability of getting a ball with a number less than 3? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.1 | 0.5 | | orange | red | green | | Color |
How many green balls were in the bag? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.2 | 0.8 | | yellow | blue | | Color |
Probability of Type
| | 1 | | | wagon | sedan | | Type |
What is the probability of a car being a yellow sedan? | |
[2] |
Roll 36 6-sided dice.
How many times would you expect to get an even number? | |
[1] | There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.2 | 0.3 | | green | pink | blue | | Color |
If you choose a random ball from the bag, what is the probability of it not being pink? | |
[1] |
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are 1 or 4? | |
[1] |