2 years ago

Pls answer quickly But the answer

Mathematics

1 answer:

Sergeu [11.5K]2 years ago

3 0

Answer: Milligram is the smallest

Step-by-step explanation:

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The Z-score is calculated by the formula below

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Step 2: Substitute the given parameters in the formula

$\begin{gathered} z-\text{score}=\frac{145-165}{40} \\ Z=-\frac{20}{40} \\ Z=-\frac{1}{2} \\ Z=-0.5 \end{gathered}$

Hence, the z-score of a person who scored 145 on the exam is -0.5

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