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March 26, 2015

March 26, 2015

Posted by **Jennifer** on Saturday, November 12, 2011 at 7:05pm.

I. Find the standard score (z) for a data value = 19.

II. Find the probability of a data value < 19.

III. Find the probability of a data value > 19.

- Math....please help -
**PsyDAG**, Sunday, November 13, 2011 at 1:42am1. Z = (score-mean)/SD

SD^2 = Variance

2 and 3. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z score.

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