A group of people did a math test and here are their scores out of 5:
What fraction of the people score exactly 5? | |
[2] | There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.3 | 0.4 | | yellow | pink | green | | Color |
How many pink balls were in the bag? | |
[1] |
There are 5 balls in a bag. This is is the probability distribution of their color:
How many green balls were in the bag? | |
[1] | A bag has 2 red balls and 4 blue balls. You take out 1 red ball, then another ball.
What is the probability of getting blue for the second ball? | |
[1] |
A bag has 12 balls with numbers from 1 to 12. You take out 1 ball.
What is the probability of NOT getting the ball with the number 3? | |
[1] | A bag has 6 balls with number 1 and 5 balls with a number 8. You take out 1 ball.
What is the probability of getting the ball with the number 8? | |
[1] |
A wheel has 9 sections, each has a reward in dollars, from $1 through to $9.
What prize do we expect to get if we spin the wheel? | |
[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:
| | 0.55 | | 0.05 | 0.2 | 0.2 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2? | |
[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 | 0.15 | 0.2 | 0.1 | 0.45 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 2 or smaller than 3? | |
[1] | A group of humans did a math test and here are their scores out of 5:
What fraction of the humans score exactly 3? | |
[2] |
There are 90 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.3 | 0.2 | | yellow | pink | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being pink? | |
[1] | A group of dogs did a math test and here are their scores out of 5:
What fraction of the dogs score more than 5? | |
[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:
| | 0.5 | 0.2 | | 0.25 | 0.05 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 4 or smaller than 5? | |
[1] | Roll 30 6-sided dice.
How many times would you expect to get an odd number? | |
[1] |
There are 70 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.2 | 0.3 | | orange | yellow | green | | Color |
How many green balls were in the bag? | |
[1] | A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in exactly 13s?
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[2] |
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