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April 21, 2014

April 21, 2014

Posted by **Kathryn** on Tuesday, October 4, 2011 at 6:16pm.

find (a)P(X<400) and b)P(250<X<400)

- Prob and Stats -
**PsyDAG**, Tuesday, October 4, 2011 at 8:06pmZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores calculated.

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