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May 26, 2016
Posted by **Huffette** on Friday, November 30, 2012 at 10:26pm.

P(z< -a) = 0.2451

- statistics -
**PsyDAG**, Saturday, December 1, 2012 at 1:32pmI don't know what you mean by "-a."

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.2451) and its Z score.