A group of kids did a math test and here are their scores out of 5:
What is the probability of the kids to score more than 2? | |
[2] | There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.5 | 0.2 | | yellow | pink | red | | Color |
How many pink balls were in the bag? | |
[1] |
Roll 66 6-sided dice.
How many times would you expect to get anything except 5? | |
[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:
| | 0.1 | 0.05 | 0.1 | 0.15 | 0.6 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is smaller than 1? | |
[1] |
| You shoot an arrow at a target. You will either score 20 (10% chance), 30 (40% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] | A group of dogs did a math test and here are their scores out of 5:
What fraction of the dogs score exactly 2? | |
[2] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number equal to 1 and a head? | |
[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:
| | 0.1 | | 0.05 | 0.1 | 0.75 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 2 or 3? | |
[1] |
| You shoot an arrow at a target. There is a 60% chance of scoring a 20, a 10% 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] | Roll 66 6-sided dice.
How many times would you expect to get an ugly number? | |
[1] |
Roll 2 6-sided dice.
You add the two numbers. What is the probability of getting 2? | |
[1] | Roll 120 6-sided dice.
How many times would you expect to get less than 5? | |
[1] |
A wheel has 13 sections, each has a reward in dollars, from $1 through to $13.
What prize do we expect to get if we spin the wheel? | |
[1] | A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score less than 3? | |
[2] |
We asked a group of boys how many Apples they eat in a month. Here are the results:
What fraction of the boys eat exactly 4 Apples in a month? | |
[2] | A bag has 9 red balls, 8 green balls and 3 blue balls. You take out 1 ball.
What is the probability of getting a green ball or a blue ball? | |
[1] |
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