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30-4

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30-4

by magical cook » Sat Aug 25, 2007 1:30 pm
Hi,

Can anyone help with this problem?

Thanks.
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by beny » Sat Aug 25, 2007 1:57 pm
Answer is E.

First, if the lowest is 70 and the mean is 85, the scores could be 70, 100, 85, 85, 85, 85... etc. and the range would be 30.

The scores could also be 70, 85.6, 85.6, 85.6... etc. and the range would be 15.6.
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by magical cook » Sat Aug 25, 2007 1:59 pm
Yes - OA is E. thanks
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