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/
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