What percentage of the data falls within 1 standard deviation of the mean?

Question

e.mccormick · Answer

This is part of the definition of the standard deviation and the bell curve.  Are you familliar with those?

anonymous · Answer

no not really

e.mccormick · Answer

OK.  Do you know what the mean is?

anonymous · Answer

not really this is the first time i am seeing this

e.mccormick · Answer

Hmmm..  so you never had any stuff on statistics, but you now have statistics question.  Herm.

nathan917 · Answer

One standard deviation for one side will be 34% of data. So within 1 std. dev. to both sides will be 68% (approximately) .the data falls outside 1 standard deviation of the mean will be 1.00 - 0.68 = 0.32 (32 %)

e.mccormick · Answer

The arithmetic mean is the average. So the center line in a normal curve. This is an overview of the ideas nathan917 talked about. http://www.hunter.cuny.edu/edu/apiccian/edstat23.html Without a bit of statistics background, it is hard to even explain what the question means and why it is being asked.

anonymous · Answer

thak you