Associated Topics || Dr. Math Home || Search Dr. Math

### Rolling a Number Cube

```
Date: 02/27/2002 at 19:34:22
From: Jennifer
Subject: Probability word problem

Here is a word problem my 4th grader brought home from school.
I can't figure out how to solve it.

A number cube is labeled with the numbers 3,6,9,12,15,and 18.
Describe an outcome of rolling the cube that has a probability of 3/6.
```

```
Date: 02/27/2002 at 21:12:04
From: Doctor Twe
Subject: Re: Probability word problem

Hi Jennifer - thanks for writing to Dr. Math.

Any characteristic that describes exactly 3 of the 6 numbers will do.
Here are several examples:

- rolling a number less than 10
- rolling a multiple of 6
- rolling an even number
- rolling a 3, 12, or 15
- rolling a number, which when divided by 3, yields a prime number

There are, of course, many other outcomes that have a probability of
3/6, but I hope that these examples clarify what is meant.

I hope this helps. If you have any more questions, write back.

- Doctor TWE, The Math Forum
http://mathforum.com/dr.math/
```
Associated Topics:
Middle School Probability

Search the Dr. Math Library:

 Find items containing (put spaces between keywords):   Click only once for faster results: [ Choose "whole words" when searching for a word like age.] all keywords, in any order at least one, that exact phrase parts of words whole words

Submit your own question to Dr. Math
Math Forum Home || Math Library || Quick Reference || Math Forum Search