A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in less than 16s?
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[2] | There are 100 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 being blue? | |
[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:
| | 0.25 | 0.05 | 0.25 | | 0.45 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 3 to 5? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 5 or a 1 and a head or a tail? | |
[1] |
Roll 78 6-sided dice.
How many times would you expect to get more than 1? | |
[1] | Flip a coin 16 times.
Each time a Tail comes up you win $3. How much money would you expect to make altogether? | |
[1] |
Flip a coin 16 times.
Each time a Head comes up you win $2. It costs $25 to play (paid once). How much money would you expect to make altogether? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less than 5? | |
[1] |
A bag has 10 red balls and 8 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 kids how many Burgers they eat in a month. Here are the results:
What fraction of the kids eat more than 3 Burgers in a month? | |
[2] |
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:
| | 0.1 | 0.25 | | 0.2 | 0.45 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3? | |
[1] | Roll 42 6-sided dice.
How many times would you expect to get anything except 5? | |
[1] |
A group of people were timed running 100m. Here are the results:
| Time | people | | 13 | 5 | | 14 | 5 | | 15 | 3 | | 16 | 5 | | 17 | 6 |
What fraction of the people run 100m in exactly 16s?
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[2] | Roll 1 6-sided die.
What is the probability of getting an even number? | |
[1] |
A wheel has 6 sections, each with a different reward.
What is the probability of getting a Gummy Bear? | |
[1] | Roll 108 6-sided dice.
How many times would you expect to get anything except 2? | |
[1] |
You roll a 8 sided die and a 6 sided die.
What is the probability of getting 5 on both dice? | |
[1] |