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July 31, 2014

July 31, 2014

Posted by **Jen** on Thursday, October 25, 2012 at 10:35pm.

(A) What percentage of Americans earn below $19,000?

(B) What percentage of Americans earn above $40,000?

- math -
**PsyDAG**, Saturday, October 27, 2012 at 12:15amZ = (score-mean)/SD

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

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