Answer
$z=1.5$
Work Step by Step
We are given:
$\rho=40$
$\mu=135$
$y=195$
We calculate the $z$-scare:
$z=\frac{y-\mu}{\rho}=\frac{195-135}{40}=\frac{60}{40}=1.5$
Stats Modeling the World, 4th Edition
by Bock, David E.; Velleman, Paul F.; De Veaux, Richard D.
Published by
Pearson
ISBN 10:
0133151549
ISBN 13:
978-0-13315-154-1
Chapter 5 - The Standard Deviation as a Ruler and the Normal Model - Exercises - Page 131: 2
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