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:
What is the probability of rolling a 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 | 0.2 | 0.05 | 0.1 | 0.5 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 and smaller than 4? | |
[1] |
We asked a group of boys how many Icecreams they eat in a month. Here are the results:
What fraction of the boys eat exactly 2 Icecreams 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:
| | 0.2 | 0.25 | | 0.2 | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 3? | |
[1] |
There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.4 | 0.3 | | pink | blue | red | | Color |
How many red balls were in the bag? | |
[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:
| | 0.4 | 0.05 | 0.2 | 0.15 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number from 3 to 4? | |
[1] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 2 and a tail? | |
[1] | Roll 1 6-sided die.
What is the probability of getting an odd number? | |
[1] |
A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score more than 4? | |
[2] | | You shoot an arrow at a target. There is a 70% chance of scoring a 20 and a 30% chance of scoring a 40. What average score do you expect to get if you do this many times? | |
[1] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | 0.2 | 0.1 | | red | blue | green | | Color |
If you choose a random ball from the bag, what is the probability of it not being green or blue? | |
[1] | You flip a coin and roll a 4 sided die.
What is the probability of getting a 3 and a tail? | |
[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 | 0.15 | 0.25 | 0.2 | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 and smaller than 1? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a number equal to 4 and a head? | |
[1] |
A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 15s?
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[2] | Flip a coin 14 times.
Each time a head comes up you win $1 and with each tail you lose $1. It costs $20 to play (paid once). How much money would you expect to make altogether? | |
[1] |
There are 30 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 not being green or pink? | |
[1] |