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September 20, 2014

September 20, 2014

Posted by **Rebecca** on Wednesday, December 12, 2012 at 8:29pm.

- Statistics -
**MathMate**, Wednesday, December 12, 2012 at 10:54pmConvert to z-score using

(X-μ)/σ

where X=89 or 121, σ=15, μ=105.

Look up normal distribution table to find probability enclosed between these two z-scores.

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