Thursday
October 23, 2014

Homework Help: Math 156

Posted by Emory on Friday, August 7, 2009 at 1:56pm.

The systolic blood pressures of the patients at a hospital are normally distributed with a mean of
136 mm Hg and a standard deviation of 13.4 mm Hg. Find the two blood pressures having these
properties: the mean is midway between them and 90% of all blood pressures are between them.

A) 123.9 mm Hg, 148.1 mm Hg
B) 118.8 mm Hg, 153.2 mm Hg
C) 114 mm Hg, 158 mm Hg
D) 115 mm Hg, 159 mm Hg

Is the answer B?

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