SOLUTION: what percentage of scores will fall between -3 and +3 standard deviations in a normal distribution?

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Question 823717: what percentage of scores will fall between -3 and +3 standard deviations in a normal distribution?
Answer by rajagopalan(174) About Me  (Show Source):
You can put this solution on YOUR website!
Under normal distribution chart for z=3.00 we get
0.4987 x 2=0.9974
that is 99.74 percent lies between pls minus 3 std.
Ans=99.74%