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September 1, 2015

Homework Help: Math....please help

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

A set of 50 data values has a mean of 27 and a variance of 16.
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.

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