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October 25, 2014

Posted by **soffy** on Tuesday, June 12, 2012 at 8:44am.

- statistics-normal distribution -
**MathMate**, Tuesday, June 12, 2012 at 10:20amμ=575

σ=50

z1=(550-575)/50=-0.5

z2=(650-575)/50=+1.5

From normal distribution tables, find the probability between z=-0.5 to z=+1.5.

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