am trying to help grand son answer home work question. help! Question is write a set of data in which mean is 15 median is 15 and the modes are 13 and 15. Know I'm over the hill bet please help

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- Sep 17th 2008, 05:02 PMmymim1mean, median, modes homework help!!
am trying to help grand son answer home work question. help! Question is write a set of data in which mean is 15 median is 15 and the modes are 13 and 15. Know I'm over the hill bet please help

- Sep 17th 2008, 05:05 PMJhevon
- Sep 17th 2008, 06:00 PMJhevon
for the record, you should respond to my posts here.

now since you know the definitions, i don't suppose any of this will come as a surprise to you

so lets do this.

lets make up some data, for simplicity, we will take 5 values. i will write our values in ascending order, and an unknown x

13, 13, 15, 15, x

now we want:

$\displaystyle \text{Mean } = \frac {13 + 13 + 15 + 15 + x}5 = 15$

now solve for x

can you see why i choose the data like that? do you see why it works? - Sep 17th 2008, 06:07 PMmymim1thank you so much
yes i was able to help him do the problem thanks to your help! Old age has it's way of stumping ones mind!

Thank you(Bow) - Sep 17th 2008, 06:26 PMJhevon
- Oct 19th 2008, 08:18 PMmathgeek2000