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Statistics... Normal distribution?

Leukemia and blood cancer discussion.

Statistics... Normal distribution?

Postby hulbart » Mon Apr 16, 2012 4:01 am

The extract of a plant native to Taiwan has been tested as a possible treatment for Leukemia. One of the chemical compounds produced from the plant was analyzed for a particular collagen. The collagen amount was found to be normally distributed with a mean of 78 and standard deviation of 9.7 grams per mililiter.

What percentage of compounds formed from the extract of this plant fall within 3 standard deviations of the mean?
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Statistics... Normal distribution?

Postby fagin » Mon Apr 16, 2012 4:02 am

99% from the 68-95-99 rule.

1 standard deviation is 68%, 2 sd is 95%, etc.
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