This Question: 1 pt 20 of 35 (18 con A set of data items is normally...

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$\small $The formula we are going to use is $ \\$

$\small z=\frac{x-\mu}{\sigma}\\ \mu=mean=70\\ \sigma=deviation=9\\ x=75\\ z\ score \ is =\frac{75-70}{9}=\frac{5}{9}\\$

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