A group of humans were timed running 100m. Here are the results:
What fraction of the humans run 100m in more than 15s?
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[2] | A wheel has 4 purple sections and 2 blue sections.
What is the probability of getting purple? | |
[1] |
Flip a coin 2 times.
Each time a Head comes up you win $1. How much money would you expect to make altogether? | |
[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] |
You roll 2 3-sided dice
You add the two numbers. What is the probability of getting more than or equal to 3? | |
[1] | A bag has 2 balls with numbers from 5 to 6. You take out 1 ball.
What is the probability of NOT getting a ball with a number less than 4? | |
[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:
| | 0.15 | 0.25 | 0.05 | 0.05 | 0.5 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 1 or smaller than 4? | |
[1] | | A bag has 2 balls with number 3 and 7 balls with a number 6. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.5 | 0.5 | | red | yellow | | Color |
Probability of Type
| | 0.7 | 0.3 | | wagon | sedan | | Type |
What is the probability of a car being a yellow wagon? | |
[2] | There are 8 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] |
We asked a group of kids how many Peaches they eat in a month. Here are the results:
What is the probability of the kids to eat less than 1 Peaches in a month? | |
[2] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less than 3? | |
[1] |
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] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.4 | 0.6 | | orange | pink | | Color |
Probability of Type
| | 0.9 | 0.1 | | wagon | sedan | | Type |
What is the probability of a car being a orange sedan? | |
[2] |
Flip 2 coins.
What is the probability of getting 2 tails? | |
[1] | A bag has 6 red balls and 4 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
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