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 | 0.2 | 0.4 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 3 and smaller than 2? | |
[1] | A group of girls were timed running 100m. Here are the results:
What is the probability of the girls to run 100m in less than 15s?
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[2] |
Roll 2 6-sided dice.
What is the probability of getting a 4 on both dice? | |
[1] | Roll 84 6-sided dice.
How many times would you expect to get more than or equal to 1? | |
[1] |
We asked a group of boys how many Burgers they eat in a day. Here are the results:
What is the probability of the boys to eat more than 1 Burgers in a day? | |
[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.3 | 0.7 | | pink | green | | Color |
Probability of Type
| | 1 | | | wagon | sedan | | Type |
What is the probability of a car being a pink wagon? | |
[2] |
| You shoot an arrow at a target. There is a 50% chance of scoring a 10, a 30% chance of scoring a 50, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] | A wheel has 8 orange sections and 3 yellow sections.
What is the probability of getting yellow? | |
[1] |
A group of dogs were timed running 100m. Here are the results:
What fraction of the dogs run 100m in more than 17s?
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[2] | A wheel has 11 sections, each a number on it from 1 to 11. If you spin an odd number you win that amount of dollars, if you spin an even number you lose.
What prize do we expect to get if we spin the wheel? | |
[1] |
A bag has 9 red balls, 6 blue balls and 6 yellow balls. You take out a yellow ball, then a yellow ball, then another ball.
What is the probability of getting yellow for the last ball? | |
[1] | You flip a coin and roll a 9 sided die.
What is the probability of getting a 5 and a tail? | |
[1] |
Roll 90 6-sided dice.
How many times would you expect to get an even number? | |
[1] | A bag has 4 balls with number 4 and 8 balls with a number 4. You take out 1 ball.
What is the probability of getting the ball with the number 4? | |
[1] |
There are 60 balls in a bag. This is is the probability distribution of their color:
How many yellow balls were in the bag? | |
[1] | A bag has 3 red balls, 2 blue balls and 9 yellow balls. You take out a red ball, then a blue ball, then another ball.
What is the probability of getting yellow for the last ball? | |
[1] |
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